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A047144 T(n,n-2), array T as in A047140. 1
1, 4, 13, 42, 148, 540, 1945, 6994, 25784, 96564, 361560, 1353608, 5113044, 19462184, 74227737, 283335006, 1085696746, 4176869836, 16100775648, 62132631186, 240258482330, 931152718588, 3614359486290, 14044139747816 (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: A267240 A192802 A149425 * A072307 A266494 A121486

Adjacent sequences:  A047141 A047142 A047143 * A047145 A047146 A047147

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 8 19:29 EDT 2020. Contains 336298 sequences. (Running on oeis4.)