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A004355
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Binomial coefficient C(6n,n).
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3
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1, 6, 66, 816, 10626, 142506, 1947792, 26978328, 377348994, 5317936260, 75394027566, 1074082795968, 15363284301456, 220495674290430, 3173734438530120, 45795673964460816, 662252084388541314
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| a(n) is asymptotic to c/sqrt(n)*(46656/3125)^n with c=sqrt(3/5/Pi)=0.437019372236831628217354... - Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 23 2008
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REFERENCES
| M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 828.
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LINKS
| T. D. Noe, Table of n, a(n) for n=0..100
M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
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PROG
| (MAGMA) [ Binomial(6*n, n): n in [0..100] ]; // Vincenzo Librandi, Apr 13 2011
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CROSSREFS
| Sequence in context: A127857 A127858 A173535 * A124862 A130977 A191096
Adjacent sequences: A004352 A004353 A004354 * A004356 A004357 A004358
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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