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Search: id:A008958
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| A008958 |
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Triangle of central factorial numbers 4^k T(2n+1,2n+1-2k). |
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+0
7
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| 1, 1, 1, 1, 10, 1, 1, 35, 91, 1, 1, 84, 966, 820, 1, 1, 165, 5082, 24970, 7381, 1, 1, 286, 18447, 273988, 631631, 66430, 1, 1, 455, 53053, 1768195, 14057043, 15857205, 597871, 1, 1, 680, 129948, 8187608, 157280838, 704652312, 397027996, 5380840, 1
(list; table; graph; listen)
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OFFSET
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0,5
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REFERENCES
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J. Riordan, Combinatorial Identities, Wiley, 1968, p. 217.
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FORMULA
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G.f. of i-th right-hand column is x/Prod[j=1..i+1, 1-(2j-1)^2*x ].
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CROSSREFS
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Cf. A008955-A008957, A036969.
Columns include A000447. Right-hand columns include A002452, A002453.
Sequence in context: A154979 A146765 A154984 this_sequence A157277 A157629 A154336
Adjacent sequences: A008955 A008956 A008957 this_sequence A008959 A008960 A008961
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KEYWORD
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nonn,tabl,easy,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 16 2000
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