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A034274 a(n)=f(n,n-1) where f is given in A034261. 0
5, 25, 119, 546, 2442, 10725, 46475, 199342, 848198, 3585946, 15080870, 63146500, 263432340, 1095517485, 4543460595, 18798494550, 77616288750, 319874637390, 1316106144210, 5407045011420, 22184521682700, 90910797617250, 372137346502974 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..23.

CROSSREFS

Sequence in context: A055297 A244828 A238808 * A110212 A268940 A269636

Adjacent sequences:  A034271 A034272 A034273 * A034275 A034276 A034277

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Corrected and extended Apr 21 2000 - N. J. A. Sloane.

STATUS

approved

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Last modified January 29 04:57 EST 2020. Contains 331335 sequences. (Running on oeis4.)