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A027770 (n+1)*C(n+1,10). 0
10, 121, 792, 3718, 14014, 45045, 128128, 330616, 787644, 1755182, 3695120, 7407036, 14226212, 26313518, 47070144, 81719000, 138105110, 227779695, 367447080, 580870290, 901350450, 1374917115, 2064391680 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

Number of 12-subsequences of [ 1, n ] with just 1 contiguous pair; g.f. (10+x)/(1-x)^12

C(n+10, 10)*C(n+10, 1) - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 08 2005

CROSSREFS

Sequence in context: A095870 A178928 A111695 * A202808 A091692 A098309

Adjacent sequences:  A027767 A027768 A027769 * A027771 A027772 A027773

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.