OFFSET
1,1
COMMENTS
Includes all numbers of the form (2*100^k + 6*10^k + 2)^2 for k >= 2. - Andrew Howroyd, Oct 18 2024
LINKS
Zhao Hui Du, Table of n, a(n) for n = 1..24
Patrick De Geest, Index to related sequences
Hisanori Mishima, Sporadic tridigital solutions
FORMULA
a(n) = A058423(n)^2. - Andrew Howroyd, Oct 18 2024
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Nov 15 2000
STATUS
approved