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A004323 Binomial coefficient C(3n,n-5). 0
1, 18, 210, 2024, 17550, 142506, 1107568, 8347680, 61523748, 445891810, 3190187286, 22595200368, 158753389900, 1108176102180, 7694644696200, 53194089192720, 366395202809685, 2515943049305400, 17231414395464984 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

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=5..23.

Milan Janjic, Two Enumerative Functions

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[3n, n - 5], {n, 5, 30}] (* Stefan Steinerberger, Apr 11 2006 *)

PROG

(MAGMA) [Binomial(3*n, n-5): n in [5..30]]; // Vincenzo Librandi, Aug 26 2015

CROSSREFS

Sequence in context: A025959 A229270 A261484 * A025937 A021804 A025932

Adjacent sequences:  A004320 A004321 A004322 * A004324 A004325 A004326

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified January 17 15:12 EST 2020. Contains 330958 sequences. (Running on oeis4.)