OFFSET
1,1
LINKS
Zhao Hui Du, Table of n, a(n) for n = 1..4000
Patrick De Geest, Index to related sequences
Hisanori Mishima, Sporadic tridigital solutions
MATHEMATICA
Select[FromDigits/@Tuples[{0, 4, 8}, 13], Mod[#, 10]!=0&&IntegerQ[Sqrt[#]]&] (* Harvey P. Dale, Feb 14 2023 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Nov 15 2000
STATUS
approved