A058422 Squares composed of digits {0,1,8}, not ending with zero.

1, 81, 11881, 811801, 1018081, 81018001, 100180081, 108180801, 8100180001, 10001800081, 10181011801, 810001800001, 1000018000081, 1008018008001, 80181118180881, 81000018000001, 100000180000081, 100180101018001, 1180000888001881, 8100000180000001, 10000001800000081

Offset

1,2

Links

Zhao Hui Du, Table of n, a(n) for n = 1..91

Patrick De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

Mathematica

Select[FromDigits/@Tuples[{0, 1, 8}, 17], Mod[#, 10]!=0&&IntegerQ[Sqrt[#]]&] (* Harvey P. Dale, Sep 09 2022 *)

Crossrefs

Cf. A058421.

Sequence in context: A017020 A237027 A185847 * A053913 A053895 A053905

Adjacent sequences: A058419 A058420 A058421 * A058423 A058424 A058425

Keyword

nonn,base

Author

Patrick De Geest, Nov 15 2000

Status

approved