OFFSET
1,1
COMMENTS
a(20) > 10^28. - Giovanni Resta, Jul 27 2018
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..19 (first 17 terms from Jon E. Schoenfield)
MATHEMATICA
a[n_] := Block[{k=1}, While[DigitCount[k^2, 10, 3] != n, k++]; k^2]; Array[a, 6] (* Giovanni Resta, Jul 27 2018 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
More terms from Jon E. Schoenfield, Jan 14 2009
STATUS
approved