A065781 a(1) = 25; for n > 1, a(n) is the smallest integer > 0 such that the concatenation a(n)a(n-1)...a(2)a(1) is a square.

25, 2, 1, 8, 162, 70771, 164268122, 22882298366163557088, 976324672198183536165095004791768497036, 67395729561035485747722358417684895847812434249174374011671902126543092988774

Offset: 1

Author

Klaus Brockhaus, Nov 19 2001

Keywords

• base
• nonn

Crossrefs

Cf. A061359, A065691, A061839, A065780.

Extensions

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