A235720 Squares which have one or more occurrences of exactly five different digits.

12769, 13456, 13689, 13924, 15376, 15876, 16384, 17689, 17956, 18496, 18769, 20164, 20736, 21609, 21904, 23104, 23409, 23716, 28561, 29584, 30276, 30625, 30976, 31684, 32041, 32761, 34596, 35721, 36481, 37249, 38025, 38416, 39204, 39601, 41209, 43681, 45369

Offset

1,1

Comments

The first term having a repeated digit is 100489.

Links

Colin Barker, Table of n, a(n) for n = 1..1000

Formula

a(n) = A054033(n)^2.

Example

30976 is in the sequence because 30976 = 176^2 and 30976 contains exactly five different digits: 0, 3, 6, 7 and 9.

Prog

(PARI) s=[]; for(n=1, 1200, if(#vecsort(eval(Vec(Str(n^2))), , 8)==5, s=concat(s, n^2))); s

Crossrefs

Cf. A235717-A235719, A235721-A235724, A225218.

Sequence in context: A207581 A207056 A210105 * A187600 A187597 A203273

Adjacent sequences: A235717 A235718 A235719 * A235721 A235722 A235723

Keyword

nonn,base

Author

Colin Barker, Jan 15 2014

Status

approved