A065740 Largest square <= n^n.

1, 4, 25, 256, 3025, 46656, 822649, 16777216, 387420489, 10000000000, 285310881025, 8916100448256, 302875094536249, 11112006825558016, 437893889165373169, 18446744073709551616, 827240261832761854009, 39346408075296537575424, 1978419655659032909463364, 104857600000000000000000000

Offset: 1

Author

Labos Elemer, Nov 15 2001

Keywords

• easy
• nonn

Links

• Harry J. Smith, Table of n, a(n) for n = 1..100

Crossrefs

Cf. A048760, A000312, A065730-A065741.

Programs

PARI

a(n) = { sqrtint(n^n)^2 } \\ Harry J. Smith, Oct 29 2009

Formula

a(n) = A048760(A000312(n)).