A119637 Related to number of reachable pairs in a digraph (see Rao article for details).

0, 2, 4, 9, 14, 22, 28, 44, 52, 67, 84, 97, 117, 139, 163, 189, 206, 235, 266, 299, 334, 371, 410, 451, 478, 522, 568, 616, 666, 718, 748, 803, 860, 919, 980, 1043, 1108, 1175, 1244, 1315, 1388, 1463, 1540, 1619, 1700, 1783, 1838, 1924, 2012

Offset

1,2

Links

A. R. Rao, Table of n, a(n) for n = 1..200

A. R. Rao, The number of reachable pairs in a digraph, Discr. Math., 306 (2006), 1595-1600.

Crossrefs

Sequence in context: A270532 A281407 A078671 * A169762 A291465 A355606

Adjacent sequences: A119634 A119635 A119636 * A119638 A119639 A119640

Keyword

nonn

Author

N. J. A. Sloane, Jul 27 2006

Status

approved