A174536 Partial sums of A040082.

1, 2, 3, 5, 7, 29, 593, 1676860, 115620398393, 208904486974761399, 12216177524273716236243939

Offset: 1

Author

Jonathan Vos Post, Mar 21 2010

Keywords

• nonn

Comments

Partial sums of number of inequivalent Latin squares (or isotopy classes of Latin squares) of order n. The subsequence of primes (6 in a row) in this partial sum begins: 2, 3, 5, 7, 29, 593.

Examples

			a(7) = 1 + 1 + 1 + 2 + 2 + 22 + 564 = 593 is prime.
		

Crossrefs

Cf. A040082, A002860, A003090, A000315.

Formula

a(n) = SUM[i=1..n] A040082(i).