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A016267
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Expansion of 1/((1-x)(1-10x)(1-12x)).
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1, 23, 387, 5755, 80171, 1073163, 13989067, 178979915, 2258870091, 28217552203, 349721737547, 4307771961675, 52804374651211, 644763606925643, 7848274394218827, 95290403841737035, 1154595957211955531
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (23,-142,120).
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FORMULA
| a(n) = (54*12^(n+1)-55*10^(n+1)+1)/99 - Bruno Berselli, Mar 21 2011
a(n)=22*a(n-1)-120*a(n-2)+1, n>=2. - Vincenzo Librandi, Mar 21 2011
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MAPLE
| a:=n->sum((12^(n-j)-10^(n-j))/2, j=0..n): seq(a(n), n=1..17); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 12 2007
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CROSSREFS
| Sequence in context: A016324 A046493 A014926 * A142821 A016197 A199821
Adjacent sequences: A016264 A016265 A016266 * A016268 A016269 A016270
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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