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A235993
Numbers having at least one anagram which is a square.
4
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.
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
KEYWORD
nonn,base
AUTHOR
Colin Barker, Jan 19 2014
STATUS
approved