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A203228
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(n-1)-st elementary symmetric function of (1!,...,(n-1)!).
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4
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1, 3, 20, 492, 59328, 42750720, 215488512000, 8688622215168000, 3152932286024908800000, 11441362514460661304524800000, 456702585875829909265192058880000000, 218761269624450195162273767321763840000000000
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OFFSET
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1,2
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LINKS
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FORMULA
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a(1) = 1, a(n) = n! * a(n-1) + A000178(n-1). (End)
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MATHEMATICA
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f[k_] := k!; t[n_] := Table[f[k], {k, n}]
a[n_] := SymmetricPolynomial[n - 1, t[n]]
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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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