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Search: id:A154529
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| 1, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5, 1, 2, 4, 8, 7, 5
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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a(n)=(1/30)*{14*(n mod 6)-11*[(n+1) mod 6]-[(n+2) mod 6]+4*[(n+3) mod 6]+29*[(n+4) mod 6]+19*[(n+5) mod 6]}-6*[C(2*n,n) mod 2)], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Jan 13 2009]
a(n)=a(n-1)-a(n-3)+a(n-4), n>4. G.f.: (6*x^4+2*x^3+4*x+1-4*x^2)/((1-x)*(1+x)*(x^2-x+1)). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 25 2009]
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CROSSREFS
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Sequence in context: A120579 A093316 A085758 this_sequence A157823 A159703 A059521
Adjacent sequences: A154526 A154527 A154528 this_sequence A154530 A154531 A154532
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Jan 11 2009
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EXTENSIONS
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Edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 12 2009
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