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A133722 Column 3 of triangle in A133721. 2
0, 0, 1, 1, 1, 1, 7, 3, 1, 25, 6, 1, 65, 10, 1, 140, 15, 1, 266, 21, 1, 462, 28, 1, 750, 36, 1, 1155, 45, 1, 1705, 55, 1, 2431, 66, 1, 3367, 78, 1, 4550, 91, 1, 6020, 105, 1, 7820, 120, 1, 9996, 136, 1, 12597, 153, 1, 15675 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

Table of n, a(n) for n=1..55.

MAPLE

A133722 := proc(n)

        A133721(n, 3) ;

end proc:

seq(A133722(n), n=1..60) ; # R. J. Mathar, Nov 23 2011

CROSSREFS

Sequence in context: A125681 A021899 A176435 * A204155 A160390 A002194

Adjacent sequences:  A133719 A133720 A133721 * A133723 A133724 A133725

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 30 2007

STATUS

approved

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Last modified November 21 09:14 EST 2019. Contains 329362 sequences. (Running on oeis4.)