A065791 a(1) = 81; for n > 1, a(n) is the smallest square > a(n-1) with a(n-1) forming its final digits.

81, 1681, 1461681, 220861461681, 31071113326220861461681, 36510705834446371569631071113326220861461681, 268496773864458678522722709023395604054900436510705834446371569631071113326220861461681

Offset: 1

Author

Klaus Brockhaus, Nov 19 2001

Keywords

• base
• nonn

Comments

a(n) = A050634(n+1) for n >= 1.

Crossrefs

Cf. A050634, A065689, A065792, A064793.