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centered decagonal n.  and  Lehmer n.

First numbers that belong to both sets:

451, 2761, 5611, 16531, 26281, 34861, 55651, 108781, 122461, 145351, 197011, 265651, 272611, 301351, 445511, 586531, 834361, 974611, 1267561, 1638781, 2467531, 2704801, 3188011, 3523801, 3710911, 3788851, 3815011, 4154161, 5227531, 5268511, 11973781, 14356651, 16680511, 18499261, 19061281, 22865911, 24387361, 53677261, 59806111, 60256561, 110614561, 110896951, 126127531, 140635561, 141166411, 148267351, 152876851, 155542531, 172548751, 201453781, 214479751, 218758051, 256865281, 263501701, 283542151, 285276811, 370101061, 392099401, 430824031, 457111411, 459025711, 493968301, 711803461, 717542101, 723664651, 860475211, 867705511, 1019235031, 1030401901, 1096014151, 1625494651, 1698048061, 1732125781, 1768986451, 1878406531, 1988715961, 2201746201, 2307489031, 2367379201, 2439730051, 2608670611, 3136635811, 3573132781, 3617377531, 3774790261, 3819433411, 3876859351, 4181109031, 4254882061, 4742738011, 4997066911, 6026176861, 6044938351, 6426291751, 7167844531, 7199684311, 8257438411, 8572077151, 8743934711, 8914542001, 9748982461, 10306935031, 11144628661, 12135447451, 12306504661, 12668816161, 12669319531, 14602959031, 14614310161, 14750324551, 15070324501, 15162698461, 15791357011, 19144743811, 21699225031, 22176801011, 25787330201, 26077558711, 27680892151, 29348908051, 31756863601, 33609750781, 35156208781, 35701672501, 37434176011, 42716986651, 45843663811, 51418419361, 52166472961, 54006704851, 59945227651, 66392645281, 67097424031, 77024527861, 80948179411, 86656637761, 98136547531, 109688044411, 133706216281, 137764230451, 141731340661, 155284183351, 156221371801, 170987202751, 177935623351, 190588407031, 192932563951, 203213808001, 208093260211, 208495347061, 212201630551, 230668350781, 234018223111, 234702361531, 241792144651, 264248209951, 268889209501, 307181573161, 308258242531, 317027531101, 321979569661, 338565736531, 351924429511, 369309612001, 406528375111, 441926044561, 456955168951, 463940829661, 545918272351, 546096718861, 549807722101, 562645253311, 576326712781, 678450973411, 710986225951, 733274574901, 750124581151, 795751655161, 865494253261, 879471315031, 883031401351, 903471408211, 922937610661, 981965007031, 998291946961.