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A017437
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a(n) = 11*n + 4.
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17
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4, 15, 26, 37, 48, 59, 70, 81, 92, 103, 114, 125, 136, 147, 158, 169, 180, 191, 202, 213, 224, 235, 246, 257, 268, 279, 290, 301, 312, 323, 334, 345, 356, 367, 378, 389, 400, 411, 422, 433, 444, 455, 466, 477, 488, 499, 510, 521, 532, 543, 554, 565, 576, 587
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OFFSET
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0,1
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COMMENTS
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LINKS
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FORMULA
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a(0)=4, a(1)=15, a(n) = 2*a(n-1) - a(n-2). - Harvey P. Dale, May 19 2012
G.f.: (4 + 7*x)/(1-x)^2.
E.g.f.: (4 + 11*x)*exp(x). (End)
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MAPLE
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MATHEMATICA
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LinearRecurrence[{2, -1}, {4, 15}, 60] (* Harvey P. Dale, May 19 2012 *)
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PROG
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CROSSREFS
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Powers of the form (11*n+4)^m: this sequence (m=1), A017438 (m=2), A017439 (m=3), A017440 (m=4), A017441 (m=5), A017442 (m=6), A017443 (m=7), A017444 (m=8), A017445 (m=9), A017446 (m=10), A017447 (m=11), A017448 (m=12).
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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