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A027769 (n+1)*C(n+1,9). 0
9, 100, 605, 2640, 9295, 28028, 75075, 183040, 413270, 875160, 1755182, 3359200, 6172530, 10943240, 18795370, 31380096, 51074375, 81238300, 126544275, 193393200, 290435145, 429214500, 624962325, 897561600, 1272714300 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

Number of 11-subsequences of [ 1, n ] with just 1 contiguous pair; g.f. (9+x)/(1-x)^11

CROSSREFS

Sequence in context: A088780 A132544 A017018 * A065736 A092936 A056002

Adjacent sequences:  A027766 A027767 A027768 * A027770 A027771 A027772

KEYWORD

nonn

AUTHOR

thi ngoc dinh (via rkg(AT)cpsc.ucalgary.ca)

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Last modified February 15 04:23 EST 2012. Contains 205694 sequences.