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A027996
a(n)=Sum{T(n,k)*T(n,k+2)}, 0<=k<=2n-2, T given by
A027926
.
0
6, 26, 106, 424, 1684, 6667, 26352, 104069, 410806, 1621325, 6398688, 25254823, 99691822, 393600358, 1554333406, 6139498384, 24256359424, 95857063972, 378903471934, 1498090689910, 5924490920776, 23435015022946, 92721024432286
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..24.
CROSSREFS
Sequence in context:
A254317
A037545
A371438
*
A020989
A079675
A113991
Adjacent sequences:
A027993
A027994
A027995
*
A027997
A027998
A027999
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved
