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Search: id:A159348
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| A159348 |
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Transform of the finite sequence (1, 0, -1, 0, 1) by the T_{0,0} transform (see link) |
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+0
3
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| 1, 1, 1, 4, 11, 24, 55, 128, 298, 693, 1611, 3745, 8706, 20239, 47050, 109378, 254273, 591113, 1374171, 3194560, 7426451, 17264404, 40134870, 93302253, 216901423, 504234633, 1172203306, 2725042075, 6334954246, 14726981894, 34236079265
(list; graph; listen)
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OFFSET
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0,4
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LINKS
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Richard Choulet : Curtz-like transformation
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FORMULA
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O.g.f f(z)=((1-z)^2/(1-3*z+2*z^2-z^3))*(1-z^2+z^4).
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EXAMPLE
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a(0)=1, a(1)=1, a(2)=1, a(3)=4, a(4)=11, a(5)=24, a(6)=55 and for n>=4 a(n+3)=3*a(n+2)-2*a(n+1)+a(n)
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MAPLE
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a(0):=1: a(1):=1:a(2):=1: a(3):=4:a(4):=11:a(5):=24:a(6):=55:for n from 4 to 31 do a(n+3):=3*a(n+2)-2*a(n+1)+a(n):od:seq(a(i), i=0..31);
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CROSSREFS
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A137531, A159347
Sequence in context: A143075 A007678 A159350 this_sequence A159349 A115294 A110610
Adjacent sequences: A159345 A159346 A159347 this_sequence A159349 A159350 A159351
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KEYWORD
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nonn
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AUTHOR
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Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 11 2009
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