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0, 1, 17, 217, 2465, 26281, 269297, 2685817, 26269505, 253202761, 2413042577, 22791125017, 213710059745, 1992110014441, 18478745943857, 170706760005817, 1571545212141185, 14425381885981321, 132080236787517137
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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FORMULA
| G.f.: x/((1-8x)(1-9x)).
E.g.f.: e^(9*x)-e^(8*x). [From Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 14 2009]
a(0)=0, a(n)=9*a(n-1)+8^(n-1). [From Vincenzo Librandi, Feb 09 2011]
a(0)=0, a(1)=1, a(n)=17*a(n-1)-72*a(n-2). [From Vincenzo Librandi, Feb 09 2011]
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MATHEMATICA
| Join[{a=0, b=1}, Table[c=17*b-72*a; a=b; b=c, {n, 40}]] (*From Vladimir Joseph Stephan Orlovsky, Feb 09 2011*)
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CROSSREFS
| Sequence in context: A009441 A016293 A139733 * A125452 A016238 A016181
Adjacent sequences: A016182 A016183 A016184 * A016186 A016187 A016188
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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