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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
OFFSET
1,1
CROSSREFS
Sequence in context: A244828 A357598 A238808 * A110212 A344097 A268940
KEYWORD
nonn
EXTENSIONS
Corrected and extended Apr 21 2000 - N. J. A. Sloane.
STATUS
approved