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A016205 Expansion of 1/((1-x)(1-2x)(1-10x)). 0
1, 13, 137, 1385, 13881, 138873, 1388857, 13888825, 138888761, 1388888633, 13888888377, 138888887865, 1388888886841, 13888888884793, 138888888880697, 1388888888872505, 13888888888856121, 138888888888823353 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = (25*10^n - 9*2^n + 2)/18. - Bruno Berselli, Feb 09 2011
a(n) = 10*a(n-1) + 2^(n+1) - 1 if n > 0; a(0)=1. - Vincenzo Librandi, Feb 09 2011
CROSSREFS
Sequence in context: A157950 A249444 A046278 * A083755 A113579 A164967
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)