Search a number
centered square n.  and  equidigital n.

First numbers that belong to both sets:

1, 5, 13, 25, 41, 61, 113, 145, 181, 265, 313, 365, 421, 613, 761, 841, 1013, 1201, 1301, 1405, 1513, 1625, 1741, 1861, 1985, 2113, 2245, 2381, 2521, 2813, 2965, 3121, 3613, 3785, 4513, 4705, 5101, 6845, 7081, 7321, 8581, 9661, 9941, 10225, 10513, 10805, 11101, 11401, 11705, 12013, 12641, 12961, 13285, 13613, 13945, 14281, 14621, 14965, 15313, 16021, 16381, 17861, 18625, 19013, 19405, 19801, 20201, 21013, 21425, 21841, 23113, 23981, 24421, 24865, 25765, 26681, 27145, 27613, 30013, 30505, 34061, 34585, 35645, 36181, 36721, 37813, 38365, 38921, 40045, 41185, 41761, 43513, 44105, 44701, 45301, 45905, 47741, 49613, 51521, 52813, 54121, 56113, 59513, 60901, 68821, 70313, 71821, 76441, 79601, 82013, 83641, 86113, 90313, 94613, 97241, 98125, 99013, 100801, 101701, 102605, 103513, 104425, 105341, 106261, 108113, 110921, 112813, 113765, 114721, 115681, 116645, 117613, 118585, 120541, 121525, 125501, 126505, 127513, 128525, 129541, 130561, 131585, 132613, 133645, 134681, 135721, 138865, 139921, 140981, 142045, 143113, 144185, 145261, 147425, 148513, 149605, 150701, 152905, 154013, 155125, 156241, 157361, 161881, 163021, 164165, 165313, 167621, 168781, 169945, 172285, 173461, 177013, 180601, 183013, 184225, 185441, 186661, 187885, 189113, 190345, 196565, 199081, 201613, 202885, 204161, 205441, 206725, 210601, 211901, 213205, 215825, 218461, 221113, 223781, 226465, 227813, 229165, 230521, 233245, 234613, 237361, 241513, 244301, 247105, 251341, 252761, 255613, 258481, 259921, 262813, 265721, 267181, 273061, 274541, 277513, 282001, 283505, 291085, 292613, 294145, 298765, 301865, 303421, 304981, 312841, 317605, 319201, 324013, 332113, 333745, 335381, 337021, 338665, 340313, 345281, 346945, 348613, 353641, 357013, 358705, 360401, 362101, 365513, 370661, 374113, 375845, 377581, 381065, 382813, 384565, 388081, 389845, 391613, 400513, 405901, 413141, 416785, 420445, 424121, 425965, 427813, 429665, 431521, 435245, 437113, 438985, 444625, 448405, 450301, 452201, 454105, 456013, 459841, 463685, 479221, 481181, 485113, 489061, 491041, 495013.

Some larger examples :