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A027822 42*(n+1)*C(n+6,10). 0
210, 2772, 19404, 96096, 378378, 1261260, 3699696, 9801792, 23891868, 54318264, 116396280, 237025152, 461705244, 864913896, 1565082288, 2745758400, 4684950270, 7795127340, 12676924260, 20190250080 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

Number of 17-subsequences of [ 1, n ] with just 6 contiguous pairs; g.f. 42*(5+6x)/(1-x)^12

C(n+5, 5)*C(n+10, 6) - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 08 2005

CROSSREFS

Sequence in context: A064260 A027806 A024407 * A024449 A103604 A061133

Adjacent sequences:  A027819 A027820 A027821 * A027823 A027824 A027825

KEYWORD

nonn

AUTHOR

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

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Last modified February 13 12:30 EST 2012. Contains 205469 sequences.