A235719 -id:A235719 - cp's OEIS frontend

A235718 Squares which have one or more occurrences of exactly three different digits.

169, 196, 256, 289, 324, 361, 529, 576, 625, 729, 784, 841, 961, 1156, 1225, 1521, 1600, 1681, 2025, 2116, 2209, 2500, 3136, 3364, 3600, 3844, 3969, 4225, 4489, 4624, 4900, 5625, 5776, 5929, 6400, 6561, 6889, 7225, 8100, 8281, 8464, 8836, 9409, 10201, 10404

Offset: 1

Colin Barker, Jan 15 2014

The first term having a repeated digit is 1156.

			5929 is in the sequence because 5929 = 77^2 and 5929 contains exactly three different digits: 2, 5 and 9.

Giovanni Resta, Table of n, a(n) for n = 1..12299 (terms < 10^36, first 600 terms from Colin Barker)

Cf. A054031, A225218, A235717, A235719-A235724.

s=[]; for(n=1, 200, if(#vecsort(eval(Vec(Str(n^2))),,8)==3, s=concat(s, n^2))); s

a(n) = A054031(n)^2.

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

Original entry on oeis.org

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

Colin Barker, Jan 15 2014

The first term having a repeated digit is 100489.

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

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

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

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

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

cp's OEIS Frontend

A235718 Squares which have one or more occurrences of exactly three different digits.

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