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A115220
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G.f.: x^4*(1-2*x-2*x^2)/(1-4*x+x^4-2*x^5-2*x^6).
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0
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0, 0, 0, 0, 1, 2, 6, 24, 95, 380, 1520, 6072, 24253, 96870, 386910, 1545368, 6172403, 24653392, 98468904, 393297808, 1570883385, 6274315690, 25060445446, 100094728568, 399791564311, 1596820303940, 6377911168464, 25474219467560, 101747396653957, 406392538897646
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,6
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LINKS
| Fan Chung, Ron Graham, Primitive juggling sequences, Am. Math. Monthly 115 (3) (2008) 185-194
Index entries for sequences related to linear recurrences with constant coefficients, signature (4,0,0,-1,2,2)
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FORMULA
| a[0]=a[1]=a[2]=a[3]=0,a[4]=1,a[5]=2,a[6]=6; for n>6 a[n]=2*a[ -6+n]+2*a[ -5+n]-a[ -4+n]+4*a[ -1+n]. - Zak Seidov (zakseidov(AT)yahoo.com), Mar 06 2006
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MATHEMATICA
| {a[0]=a[1]=a[2]=a[3]=0, a[4]=1, a[5]=2, a[6]=6}; a[n_]:=a[n]=2*a[ -6+n]+2*a[ -5+n]-a[ -4+n]+4*a[ -1+n]; Table[a[n], {n, 0, 29}] - Zak Seidov (zakseidov(AT)yahoo.com), Mar 06 2006
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CROSSREFS
| Sequence in context: A003759 A003450 A192466 * A072854 A147944 A147935
Adjacent sequences: A115217 A115218 A115219 * A115221 A115222 A115223
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 05 2006
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