A235993 Numbers having at least one anagram which is a square.

1, 4, 9, 16, 18, 25, 36, 46, 49, 52, 61, 63, 64, 81, 94, 100, 112, 121, 136, 144, 148, 163, 169, 184, 196, 211, 225, 234, 243, 252, 256, 259, 265, 279, 289, 295, 297, 298, 316, 324, 342, 361, 400, 414, 418, 423, 432, 441, 448, 478, 481, 484, 487, 522, 526

Offset

1,2

Comments

An anagram of a k-digit number is one of the <= k! permutations of the digits that does not begin with 0.

Links

Chai Wah Wu, Table of n, a(n) for n = 1..10000

Example

121 is in the sequence because 121 = 11^2.
619 is in the sequence because 169, 196 and 961 are squares.

Crossrefs

Cf. A000290, A007936 (leading zeros allowed), A046810, A055098, A235994.

Sequence in context: A122379 A104020 A066694 * A102646 A104021 A073804

Adjacent sequences: A235990 A235991 A235992 * A235994 A235995 A235996

Keyword

nonn,base

Author

Colin Barker, Jan 19 2014

Status

approved