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A069135
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a(n) = (n!*(n+1)!)^2.
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1
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1, 4, 144, 20736, 8294400, 7464960000, 13168189440000, 41295442083840000, 214075571762626560000, 1734012131277275136000000, 20981546788455029145600000000, 365582471242040427832934400000000, 8896815020146295851742291558400000000, 294698100727325903793111665580441600000000
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = det(PS(i+2,j), 1 <= i,j <= n), where PS(n,k) are Legendre-Stirling numbers of the second kind (A071951) [Mircea Merca, Apr 04 2013]
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MATHEMATICA
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Table[(n!(n + 1)!)^2, {n, 1, 10}]
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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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Rebecca Gladu (rgladu(AT)eve.assumption.edu), Apr 07 2002
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EXTENSIONS
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STATUS
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approved
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