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A008285
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Erroneous version of A342587.
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0
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1, 1, 2, 1, 12, 6, 1, 86, 108, 24, 1, 840, 2310, 960, 120, 1, 11642, 65700, 42960, 9000, 720, 1, 227892, 2583126, 2510760, 712320, 90720, 5040, 1, 6285806, 142259628, 199424904, 71243760, 11481120, 987840, 40320
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refs;
listen;
history;
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internal format)
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OFFSET
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1,3
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LINKS
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Table of n, a(n) for n=1..36.
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 60.
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EXAMPLE
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Triangle T(n,k) (with n >= 1 and 1 <= k <= n) begins as follows:
1;
1, 2;
1, 12, 6;
1, 86, 108, 24;
1, 840, 2310, 960, 120;
1, 11642, 65700, 42960, 9000, 720;
1, 227892, 2583126, 2510760, 712320, 90720, 5040;
...
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CROSSREFS
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Cf. A000142 (diagonal), A001035 (row sums), A055531 (k=2), A055532 (k=3), A055533 (subdiagonal), A081064, A342501 (connected).
Sequence in context: A276998 A222866 A342587 * A119274 A066991 A132875
Adjacent sequences: A008282 A008283 A008284 * A008286 A008287 A008288
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KEYWORD
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dead
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AUTHOR
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N. J. A. Sloane
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STATUS
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approved
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