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A004370
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Binomial coefficient C(7n,n-2).
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0
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1, 21, 378, 6545, 111930, 1906884, 32468436, 553270671, 9440350920, 161322559475, 2761025887620, 47325339895743, 812325612855848, 13961746143269400, 240260199935164200, 4139207762053520646
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OFFSET
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2,2
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REFERENCES
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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
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Table of n, a(n) for n=2..17.
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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MATHEMATICA
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Table[Binomial[7n, n-2], {n, 2, 20}] (* From Harvey P. Dale, Mar 16 2012 *)
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CROSSREFS
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Sequence in context: A218763 A181364 A134494 * A001881 A108740 A094172
Adjacent sequences: A004367 A004368 A004369 * A004371 A004372 A004373
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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