A065789 a(1) = 8; 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.

8, 42, 2458, 310042, 2929997542, 1046218875000310042, 406005268741864709999999997070002458, 50376698115810287966925579573179705000000000000000001046218875000310042

Offset: 1

Author

Klaus Brockhaus, Nov 19 2001

Keywords

• base
• nonn

Comments

a(n) = A050637(n+1) for n >= 1; a(n) = sqrt(A065788(n)).

Essentially the same as A050637. - Zak Seidov, Mar 12 2012

Crossrefs

Cf. A050635, A050637, A065690, A065788, A065790.