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Search: id:A060855
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| A060855 |
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Multi-dimensional Catalan numbers: diagonal T(n,n+1) of A060854. |
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+0
2
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| 1, 5, 462, 1662804, 396499770810, 9490348077234178440, 32103104214166146088869942000, 20535535214275361308250745082811167425600, 3201252689605333194364294895470993505956118059617444000
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Number of standard tableaux of shape ((n+1)^n). - Emeric Deutsch (deutsch(AT)duke.poly.edu), May 13 2004
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FORMULA
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a(n) = 0!*1!*..*(k-1)! *(k*n)! / ( n!*(n+1)!*..*(n+k-1)! ) for k=n+1
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CROSSREFS
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Adjacent sequences: A060852 A060853 A060854 this_sequence A060856 A060857 A060858
Sequence in context: A145247 A055305 A144509 this_sequence A125534 A024071 A152513
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KEYWORD
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nonn,easy
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AUTHOR
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R. H. Hardin (rhhardin(AT)att.net), May 03 2001
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