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A011882 [ n(n-1)/29 ]. 0
0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 17, 19, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 41, 43, 45, 48, 51, 53, 56, 59, 62, 65, 68, 71, 74, 77, 81, 84, 87, 91, 95, 98, 102, 106, 110, 114, 118, 122, 126, 130, 134, 139, 143, 147, 152, 157, 161, 166, 171 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,10

LINKS

Table of n, a(n) for n=0..71.

FORMULA

G.f.: -((x^6 (1-x+x^3-x^5+x^6+x^14-x^15+x^17-x^19+x^20))/(-1+x (2+x (-1+(-1+x)^2 x^27))))

CROSSREFS

Sequence in context: A024698 A011883 A034886 * A025767 A091848 A017886

Adjacent sequences:  A011879 A011880 A011881 * A011883 A011884 A011885

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vladimir Joseph Stephan Orlovsky, Mar 14 2010

STATUS

approved

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Last modified February 26 21:58 EST 2020. Contains 332295 sequences. (Running on oeis4.)