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A131877
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a(n) = 14*n + 1.
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4
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1, 15, 29, 43, 57, 71, 85, 99, 113, 127, 141, 155, 169, 183, 197, 211, 225, 239, 253, 267, 281, 295, 309, 323, 337, 351, 365, 379, 393, 407, 421, 435, 449, 463, 477, 491, 505, 519, 533, 547, 561, 575, 589, 603, 617, 631, 645, 659, 673, 687, 701, 715, 729
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OFFSET
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0,2
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COMMENTS
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Binomial transform of (1, 14, 0, 0, 0, ...).
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LINKS
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FORMULA
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a(n) = 14*n + 1.
G.f.: (1+13*x)/(1-x)^2.
E.g.f.: exp(x)*(1 + 14*x).
a(n) = 2*a(n-1) - a(n-2) for n >= 2. (End)
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EXAMPLE
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a(2) = 29 = 2*14 + 1.
a(2) = 29 = (1, 2, 1) dot (1, 14, 0) = (1 + 28 + 0).
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MATHEMATICA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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