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A089835
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a(n) = (A000108(n)^2)*(n+1)!.
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5
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1, 2, 24, 600, 23520, 1270080, 87816960, 7420533120, 742053312000, 85781362867200, 11260753452748800, 1655330757554073600, 269436914075724595200, 48113734656379392000000
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OFFSET
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0,2
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COMMENTS
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This sequence gives the total number of non-recursive "clauses" of n opening nodes, used in the construction of A089840.
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LINKS
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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