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A165680
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Triangle of the divisors of the coefficients of triangles A138771 and A165675
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3
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1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 6, 1, 1, 1, 2, 6, 24, 1, 1, 1, 2, 6, 24, 120, 1, 1, 1, 2, 6, 24, 120, 720, 1, 1, 1, 2, 6, 24, 120, 720, 5040, 1, 1, 1, 2, 6, 24, 120, 720, 5040, 40320, 1, 1, 1, 2, 6, 24, 120, 720, 5040, 40320, 362880
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OFFSET
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1,10
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LINKS
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FORMULA
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EXAMPLE
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Triangle starts:
1,
1, 1,
1, 1, 1,
1, 1, 1, 2,
1, 1, 1, 2, 6,
1, 1, 1, 2, 6, 24,
1, 1, 1, 2, 6, 24, 120,
1, 1, 1, 2, 6, 24, 120, 720,
1, 1, 1, 2, 6, 24, 120, 720, 5040,
1, 1, 1, 2, 6, 24, 120, 720, 5040, 40320,
1, 1, 1, 2, 6, 24, 120, 720, 5040, 40320, 362880,
...
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MAPLE
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nmax:=11: for n from 1 to nmax do a(n, 1):=1 od: for n from 2 to nmax do for m from 2 to n do a(n, m):=(m-2)! od: od: for n from 1 to nmax do seq(a(n, m), m=1..n) od;
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CROSSREFS
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A159333 equals, for n=>-1, all right hand columns.
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KEYWORD
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AUTHOR
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STATUS
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approved
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