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Search: id:A074826
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| A074826 |
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Binomial transform of reflected pentanacci numbers A074062: a(n)=Sum((-1)^k*Binomial(n,k)*A074062(k),(k=0,..,n)). |
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1
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| 5, 6, 6, 6, 6, -4, -60, -246, -722, -1758, -3754, -7144, -11868, -15646, -9458, 32726, 174750, 555668, 1446564, 3310642, 6788406, 12366066, 19107358, 21047904, -1585148, -101419654, -400928730, -1155269658, -2838111242, -6203242964, -12144929980, -20857830310, -29087301442
(list; graph; listen)
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OFFSET
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0,1
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LINKS
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N. J. A. Sloane, Transforms
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FORMULA
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a(n) = 6a(n-1)-15a(n-2)+20a(n-3)-15a(n-4)+4a(n-5), a(0) = 5, a(1) = 6, a(2) = 6, a(3) = 6, a(4) = 6. G.f.: (5-24x+45x^2-40x^3+15x^4)/(1-6x+15x^2-20x^3+15x^4-4x^5).
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MATHEMATICA
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CoefficientList[Series[(5-24x+45x^2-40x^3+15x^4)/(1-6x+15x^2-20x^3+15x^4-4x^5), {x, 0, 35}], x]
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CROSSREFS
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Cf. A074062, A074825.
Sequence in context: A154010 A064864 A004553 this_sequence A018246 A101101 A046786
Adjacent sequences: A074823 A074824 A074825 this_sequence A074827 A074828 A074829
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KEYWORD
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easy,sign
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AUTHOR
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Mario Catalani (mario.catalani(AT)unito.it), Sep 10 2002
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