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A053911
Squares composed of digits {1,6,9}.
3
1, 9, 16, 169, 196, 961, 69169, 69696, 9696996, 16966161, 611919169, 6661661161, 696199996996, 1911961611169, 99191919116196, 116116119966961, 116696699999166169, 699666116199699961, 996111661161199969
OFFSET
1,2
CROSSREFS
Cf. A053910.
Sequence in context: A204268 A075373 A072470 * A171522 A236287 A329964
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Mar 15 2000
STATUS
approved