A174137 Partial sums of A006905.

1, 3, 16, 187, 4181, 158484, 9573673, 887796203, 123095499826, 25013843421773, 7332464142932061, 3060854010476035118, 1800064413234246359355, 1477862758280253372432667, 1680717420907850482529235664

Offset

0,2

Comments

Partial sums of number of transitive relations on n labeled nodes. After 3, none of the values shown is prime.

Links

Table of n, a(n) for n=0..14.

Formula

a(n) = Sum_{i=0..n} A006905(i).

Crossrefs

Cf. A006905, A000595, A001173, A091073.

Sequence in context: A192668 A045990 A007006 * A166860 A196562 A317073

Adjacent sequences: A174134 A174135 A174136 * A174138 A174139 A174140

Keyword

nonn

Author

Jonathan Vos Post, Mar 09 2010

Status

approved