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A011851 [ C(n,5)/5 ]. 1
0, 0, 0, 0, 0, 0, 1, 4, 11, 25, 50, 92, 158, 257, 400, 600, 873, 1237, 1713, 2325, 3100, 4069, 5266, 6729, 8500, 10626, 13156, 16146, 19656, 23751, 28501, 33982, 40275, 47467, 55651, 64926, 75398, 87179 (list; graph; refs; listen; history; internal format)
OFFSET

0,8

MAPLE

seq(floor(binomial(n, 5)/5), n=0..37); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 12 2009]

CROSSREFS

A column of triangle A011857.

Sequence in context: A006004 A006522 A036837 * A193912 A136395 A014160

Adjacent sequences:  A011848 A011849 A011850 * A011852 A011853 A011854

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.