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A027971 T(n,2n-9), T given by A027960. 1
3, 7, 18, 47, 123, 319, 806, 1954, 4506, 9859, 20495, 40615, 77040, 140455, 247085, 420906, 696509, 1122751, 1767344, 2722551, 4112177, 6100063, 8900312, 12789498, 18121132, 25342683, 35015477, 47837823, 64671742 (list; graph; refs; listen; history; internal format)
OFFSET

5,1

CROSSREFS

A column of triangle A027011.

Sequence in context: A026107 A173765 A027969 * A018028 A045994 A101308

Adjacent sequences:  A027968 A027969 A027970 * A027972 A027973 A027974

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 17 16:13 EST 2012. Contains 206050 sequences.