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A016887 a(n) = (5*n+3)^3. 1
27, 512, 2197, 5832, 12167, 21952, 35937, 54872, 79507, 110592, 148877, 195112, 250047, 314432, 389017, 474552, 571787, 681472, 804357, 941192, 1092727, 1259712, 1442897, 1643032, 1860867, 2097152, 2352637, 2628072, 2924207, 3241792, 3581577, 3944312 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
From Ilya Gutkovskiy, May 26 2016: (Start)
O.g.f.: (27 + 404*x + 311*x^2 + 8*x^3)/(1 - x)^4.
E.g.f.: (27 + 485*x + 600*x^2 + 125*x^3)*exp(x). (End)
a(n) = A000578(A016885(n)). - Michel Marcus, May 26 2016
MATHEMATICA
(5 Range[0, 30] + 3)^3 (* or *) LinearRecurrence[{4, -6, 4, -1}, {27, 512, 2197, 5832}, 30] (* Harvey P. Dale, Nov 26 2014 *)
Table[(5 n + 3)^3, {n, 0, 40}] (* Vincenzo Librandi, May 26 2016 *)
PROG
(Magma) [(5*n+3)^3: n in [0..40]]; // Vincenzo Librandi, May 26 2016
CROSSREFS
Sequence in context: A021734 A019752 A001709 * A110896 A215039 A014928
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified April 19 16:38 EDT 2024. Contains 371794 sequences. (Running on oeis4.)