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1, 44, 1936, 85184, 3748096, 164916224, 7256313856, 319277809664, 14048223625216, 618121839509504, 27197360938418176, 1196683881290399744, 52654090776777588736, 2316779994178213904384, 101938319743841411792896
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| The compositions of n in which each natural number is colored by one of p different colors are called p-colored compositions of n. For n>=1, a(n) equals the number of 44-colored compositions of n such that no adjacent parts have the same color. - Milan Janjic, Nov 17 2011
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LINKS
| T. D. Noe, Table of n, a(n) for n=0..100
Tanya Khovanova, Recursive Sequences
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FORMULA
| G.f.: 1/(1-44*x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 24 2008]
a(n)=44^n; a(n)=44*a(n-1) a(0)=1 [From Vincenzo Librandi, Nov 21 2010]
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PROG
| (MAGMA)[44^n: n in [0..20]] [From Vincenzo Librandi, Nov 21 2010]
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CROSSREFS
| Sequence in context: A188564 A188751 A188871 * A041925 A094506 A121008
Adjacent sequences: A009985 A009986 A009987 * A009989 A009990 A009991
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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