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A119639
Related to number of reachable pairs in a digraph (see Rao article for details).
1
1, 3, 6, 11, 17, 25, 34, 47, 59, 74, 91, 109, 129, 152, 176, 202, 229, 259, 290, 323, 358, 396, 435, 476, 518, 562, 609, 657, 707, 759, 812, 869, 927, 987, 1048, 1111, 1176, 1244, 1313, 1384, 1457, 1532, 1609, 1689, 1770, 1853, 1937, 2023, 2111
OFFSET
1,2
LINKS
A. R. Rao, The number of reachable pairs in a digraph, Discr. Math., 306 (2006), 1595-1600.
CROSSREFS
Sequence in context: A176708 A273140 A320272 * A281376 A247586 A377407
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 27 2006
STATUS
approved