A235721 Squares which have one or more occurrences of exactly six different digits.

103684, 104329, 104976, 107584, 123904, 124609, 132496, 134689, 139876, 140625, 157609, 162409, 164025, 170569, 173056, 180625, 195364, 198025, 207936, 209764, 214369, 237169, 254016, 257049, 258064, 259081, 279841, 293764, 310249, 318096, 321489, 326041

Offset

1,1

Comments

The first term having a repeated digit is 1028196.

Links

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

Formula

a(n) = A054034(n)^2.

Example

124609 is in the sequence because 124609 = 353^2 and 124609 contains exactly six different digits: 0, 1, 2, 4, 6 and 9.

Prog

(PARI) s=[]; for(n=1, 1200, if(#vecsort(eval(Vec(Str(n^2))), , 8)==6, s=concat(s, n^2))); s

Crossrefs

Cf. A235717-A235720, A235722-A235724, A225218.

Sequence in context: A269218 A237894 A171162 * A210180 A136312 A205260

Adjacent sequences: A235718 A235719 A235720 * A235722 A235723 A235724

Keyword

nonn,base

Author

Colin Barker, Jan 15 2014

Status

approved