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A047124 T(n,n-2), array T as in A047120. 0
1, 1, 6, 22, 86, 335, 1307, 5071, 19664, 76299, 296396, 1152682, 4487818, 17492162, 68252789, 266589233, 1042279572, 4078677195, 15974343417, 62614027433, 245608306154, 964087953123, 3786809126547, 14883181075527 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

LINKS

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

CROSSREFS

Sequence in context: A253070 A255461 A003699 * A046365 A266184 A255465

Adjacent sequences:  A047121 A047122 A047123 * A047125 A047126 A047127

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 8 17:01 EST 2021. Contains 349596 sequences. (Running on oeis4.)