A048119 - OEIS

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A048119

a(n)=(1/2)*T(2n+1,n+1), where T is given by A048113.

1, 3, 9, 30, 102, 360, 1290, 4704, 17334, 64512, 241836, 912384, 3459876, 13178988, 50389236, 193295652, 743610528, 2867892588, 11085281328, 42933166380, 166575534264, 647329281456, 2519234973996, 9817121868084

(list; graph; refs; listen; history; text; internal format)

OFFSET

2,2

LINKS

Table of n, a(n) for n=2..25.

CROSSREFS

Sequence in context: A090573 A228339 A257641 * A304823 A317875 A056333

Adjacent sequences: A048116 A048117 A048118 * A048120 A048121 A048122

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved