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A065690
a(1) = 0; for n > 1, a(n) is the square root of the smallest square > a(n-1)^2 with a(n-1)^2 forming its final digits.
9
0, 10, 90, 410, 12090, 4699590, 1762700012090, 60424089429999995300410, 163858711658690481272000000000001762700012090, 284443295612274221167414335130587074570377999999999999999999999939575910570000004699590
OFFSET
1,2
COMMENTS
a(n) = 10*A050635(n-1) for n > 1; a(n) = sqrt(A065689(n)).
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Klaus Brockhaus, Nov 17 2001
STATUS
approved