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A065780 a(1) = 5; 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. 3

%I #8 Sep 17 2023 21:31:33

%S 5,15,35,285,4035,2660285,40530004035,478354453999997339715,

%T 31246194523464509984000000000040530004035,

%U 8209490213224904365731763888026434805200000000000000000000478354453999997339715

%N a(1) = 5; 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.

%Y Cf. A050635, A065690, A061839, A065781.

%K base,nonn

%O 1,1

%A _Klaus Brockhaus_, Nov 19 2001

%E More terms from Ulrich Schimke (ulrschimke(AT)aol.com), Dec 18 2001

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Last modified April 17 08:54 EDT 2024. Contains 371763 sequences. (Running on oeis4.)