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decagonal n.  and  deceptive n.

First numbers that belong to both sets:

451, 6601, 14701, 148417, 251251, 437251, 497377, 642001, 741751, 748657, 924001, 1169101, 1590751, 1809697, 1863907, 1907851, 2146957, 2205967, 2314201, 2976487, 3862207, 4005001, 4415251, 4499701, 4863127, 5406787, 5481451, 6457951, 7624501, 8417251, 9273547, 9494101, 10402237, 10505701, 12711007, 14026897, 14632537, 15882217, 16042027, 17316001, 17349307, 18158251, 18535177, 19582837, 20261251, 22669501, 23283037, 23476447, 26886817, 31150351, 38010307, 40160737, 42266251, 46584037, 47131657, 50997451, 51283501, 51627817, 52204237, 55729957, 58449847, 59309251, 61171951, 64020001, 71592751, 76129987, 76479397, 77743897, 78167701, 81455137, 84001807, 90273751, 92184001, 94502701, 97244251, 100907047, 106941451, 109437751, 109521457, 114516751, 117186037, 120236707, 130444951, 131819101, 146053267, 149848201, 151813201, 153890227, 167579497, 172272187, 179593501, 187176601, 188382487, 189482107, 196035001, 201789127, 212146507, 218603617, 223839001, 226359547, 227444101, 230348917, 237321727, 242152501, 253613587, 261186001, 271763467, 273083887, 282282001, 284301751, 303639337, 305594101, 308538007, 316315117, 320454751, 326931601, 338753227, 349138567, 352735351, 362569201, 369610237, 383425351, 395264101, 395900557, 400050001, 404864701, 407282851, 410680357, 417027451, 424411501, 426061201, 435358657, 437866087, 454766287, 458869951, 460756957, 469209751, 483351217, 493961737, 498238201, 499310197, 512626201, 519167617, 520809451, 566689927, 571460977, 582799951, 591717787, 600507277, 609361567, 620072251, 636111451, 646443337, 647257201, 649497967, 667976947, 676273027, 680440267, 701256601, 738820351, 753900577, 770909107, 773131927, 776249251, 781831501, 784966297, 829512001, 830664451, 832048447, 844788757, 845951767, 867965251, 872685451, 878603701, 881214067, 886922851, 897676501, 897916207, 906326077, 920834197, 947485351, 967287751, 989810251, 990061957, 1008777001, 1011319501, 1012846537, 1014119947, 1053732751, 1070941987, 1073299501, 1082755477, 1086444001, 1106576857, 1115910727, 1163168077, 1172737147, 1204176751, 1222568707, 1250700907, 1301856601, 1302145267, 1313428201, 1328256247, 1332633277, 1336725001, 1363178701, 1397357851, 1430446951, 1444095001, 1462393201, 1474656001, 1502434501, 1508953447, 1511751601, 1568259001, 1574601601, 1582547851, 1593706201, 1595622997, 1616140501, 1618070737, 1637436457, 1663436617, 1671603667, 1678151707, 1710753001, 1767803047, 1791426787, 1821689101, 1831947001, 1934350351, 1948803097, 1992841201, 2016481477, 2037732451, 2076192007, 2142324367, 2153076001, 2170185517, 2224183501, 2234003857, 2254469101, 2260550797, 2283430117, 2317579951, 2333010751, 2352371251, 2379610351, 2383905037, 2490533977, 2494128451, 2506529257, 2532630787, 2550780277, 2564536201, 2575080397, 2578735351, 2582799451, 2617882807, 2621977627, 2625665701, 2648671957, 2654851387, 2692079167, 2693739751, 2704546027, 2733329101, 2739606451, 2851693501, 2858105251, 2885972701, 2937775501, 2968206601, 2976930001, 2994415201, 3033944101, 3042763501, 3049386451, 3078612967.

Some larger examples :