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A016227
Expansion of 1/((1-x)(1-4x)(1-12x)).
0
1, 17, 225, 2785, 33761, 406497, 4883425, 58622945, 703562721, 8443102177, 101318624225, 1215829083105, 14589971366881, 175079745881057, 2100957308486625, 25211489133495265, 302537875328566241
OFFSET
0,2
FORMULA
G.f.: 1/((1-x)*(1-4*x)*(1-12*x)).
a(n) = (1/33) - (2/3)*4^(n-1) + (18/11)*12^(n-1). - Antonio Alberto Olivares, Feb 07 2010
a(0)=1, a(1)=17, a(n) = 16*a(n-1) - 48*a(n-2) + 1. - Vincenzo Librandi, Feb 10 2011
MATHEMATICA
CoefficientList[Series[1/((1 - x)*(1 - 4*x)*(1 - 12*x)), {x, 0, 20}],
x] (* Wesley Ivan Hurt, Oct 30 2022 *)
CROSSREFS
Sequence in context: A160398 A181380 A081044 * A155001 A012095 A296999
KEYWORD
nonn
STATUS
approved