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A009988
Powers of 44.
3
1, 44, 1936, 85184, 3748096, 164916224, 7256313856, 319277809664, 14048223625216, 618121839509504, 27197360938418176, 1196683881290399744, 52654090776777588736, 2316779994178213904384, 101938319743841411792896
OFFSET
0,2
COMMENTS
Same as Pisot sequences E(1, 44), L(1, 44), P(1, 44), T(1, 44). Essentially same as Pisot sequences E(44, 1936), L(44, 1936), P(44, 1936), T(44, 1936). See A008776 for definitions of Pisot sequences.
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
FORMULA
G.f.: 1/(1-44*x). - Philippe Deléham, Nov 24 2008
a(n) = 44^n; a(n) = 44*a(n-1), a(0)=1. - Vincenzo Librandi, Nov 21 2010
MATHEMATICA
44^Range[0, 20] (* Harvey P. Dale, May 22 2017 *)
PROG
(Magma)[44^n: n in [0..20]] // Vincenzo Librandi, Nov 21 2010
CROSSREFS
Sequence in context: A207180 A188751 A188871 * A041925 A094506 A121008
KEYWORD
nonn,easy
STATUS
approved