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1, 6, 76, 876, 9376, 96876, 984376, 9921876, 99609376, 998046876, 9990234376, 99951171876, 999755859376, 9998779296876, 99993896484376, 999969482421876, 9999847412109376, 99999237060546876, 999996185302734376
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| G.f.: 1/(1-10*x)-1/(1-5*x)+1/(1-x). E.g.f.: e^(10*x)-e^(5*x)+e^x.
a(n)=15*a(n-1)-50*a(n-2)+36 with a(0)=1, a(1)=6 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]
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MATHEMATICA
| Table[10^n-5^n+1, {n, 0, 20}] (* From Harvey P. Dale, Oct 02 2011 *)
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CROSSREFS
| A155628, A155629, A155630, A155631, A155632, A155633, A155634, A155635, A155636, A155637, A155638, A155639, A155640, A155641, A155642
Sequence in context: A137132 A053337 A199026 * A066797 A120593 A116874
Adjacent sequences: A155640 A155641 A155642 * A155644 A155645 A155646
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KEYWORD
| nonn
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AUTHOR
| Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 30 2009
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