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A177114
4*(10^n-9).
1
4, 364, 3964, 39964, 399964, 3999964, 39999964, 399999964, 3999999964, 39999999964, 399999999964, 3999999999964, 39999999999964, 399999999999964, 3999999999999964, 39999999999999964, 399999999999999964
OFFSET
1,1
FORMULA
G.f. 4*x*(1+80*x) / ( (10*x-1)*(x-1) ). - R. J. Mathar, Aug 24 2011
a(n) = 4*A170955(n). - R. J. Mathar, Aug 24 2011
MATHEMATICA
LinearRecurrence[{11, -10}, {4, 364}, 30] (* or *) Join[{4}, Table[ 100*FromDigits[PadRight[{3}, n, 9]]+64, {n, 30}]] (* Harvey P. Dale, Jul 31 2017 *)
CROSSREFS
Sequence in context: A215827 A366469 A051955 * A109760 A051181 A326996
KEYWORD
nonn,easy
STATUS
approved