A004345 Binomial coefficient C(5n,n-3).

1, 20, 300, 4060, 52360, 658008, 8145060, 99884400, 1217566350, 14783142660, 179013799328, 2163842859360, 26123889412400, 315136287090800, 3799541229226200, 45795673964460816, 551876736990451095

Offset

3,2

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.

Links

Table of n, a(n) for n=3..19.

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].

Mathematica

Table[Binomial[5n, n-3], {n, 3, 20}] (* Harvey P. Dale, Feb 13 2013 *)

Crossrefs

Sequence in context: A077758 A202270 A053541 * A001755 A361577 A016190

Adjacent sequences: A004342 A004343 A004344 * A004346 A004347 A004348

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved