A168042 The non-single or nonisolated numbers whose digits are all square.

0, 1, 9, 10, 11, 14, 19, 40, 41, 44, 49, 90, 91, 94, 99, 100, 101, 104, 109, 110, 111, 114, 119, 140, 141, 144, 149, 190, 191, 194, 199, 400, 404, 410, 411, 414, 419, 440, 441, 444, 490, 494, 900, 901, 904, 909, 910, 914, 940, 944, 949, 990, 994, 999, 1000, 1001

Offset

1,3

Comments

Square digits are 0, 1, 4 or 9. The non-single or nonisolated numbers are 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21,..

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A000290, A157908, A167707.

Sequence in context: A125004 A085514 A086446 * A342147 A045522 A054967

Adjacent sequences: A168039 A168040 A168041 * A168043 A168044 A168045

Keyword

nonn,base,less

Author

Juri-Stepan Gerasimov, Nov 17 2009

Extensions

Entries checked by R. J. Mathar, May 30 2010

Status

approved