Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #2 Mar 30 2012 18:40:51
%S 1,2,3,5,7,29,593,1676860,115620398393,208904486974761399,
%T 12216177524273716236243939
%N Partial sums of A040082.
%C 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.
%F a(n) = SUM[i=1..n] A040082(i).
%e a(7) = 1 + 1 + 1 + 2 + 2 + 22 + 564 = 593 is prime.
%Y Cf. A040082, A002860, A003090, A000315.
%K nonn
%O 1,2
%A _Jonathan Vos Post_, Mar 21 2010