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A111783 Tenth column (m=9) of unsigned triangle A111595. 0
1, 90, 5005, 223740, 8886735, 329819490, 11775438675, 411859047600, 14282642924550, 495142102154700, 17259324931198350, 607418587742967000, 21648370208790575250, 783042495355599979500, 28791389550204705674250 (list; graph; refs; listen; history; internal format)
OFFSET

9,2

FORMULA

E.g.f. (1/sqrt(1-x^2))*((x/(1-x))^9)/9!.

a(n)=(n!/9!)*sum(binomial(2*k, k)*binomial(n-2*k-1, 8)/(4^k), k=0..floor((n-9)/2)), n>=9.

CROSSREFS

Sequence in context: A017753 A197194 A111599 * A075918 A076010 A089513

Adjacent sequences:  A111780 A111781 A111782 * A111784 A111785 A111786

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Aug 23 2005

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.