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A026072 a(n) = T(2n-1,n), where T is the array defined in A024996. 0
1, 3, 13, 76, 427, 2427, 13871, 79729, 460473, 2670394, 15540822, 90717305, 530946697, 3114680815, 18308774295, 107817336510, 635942014275, 3756423495198, 22217666030882, 131563775350068 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A034172 A000670 A032036 * A063646 A047730 A162435

Adjacent sequences:  A026069 A026070 A026071 * A026073 A026074 A026075

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 15:39 EST 2012. Contains 205635 sequences.