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A017343
a(n) = (10*n + 6)^3.
3
216, 4096, 17576, 46656, 97336, 175616, 287496, 438976, 636056, 884736, 1191016, 1560896, 2000376, 2515456, 3112136, 3796416, 4574296, 5451776, 6434856, 7529536, 8741816, 10077696, 11543176, 13144256, 14886936, 16777216, 18821096, 21024576, 23393656, 25934336
OFFSET
0,1
FORMULA
a(n) = A000578(A017341(n)). - Michel Marcus, Aug 04 2021
From Wesley Ivan Hurt, Jan 27 2022: (Start)
G.f.: 8*(27+404*x+311*x^2+8*x^3)/(x-1)^4.
a(n) = 4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). (End)
MATHEMATICA
(10*Range[0, 30]+6)^3 (* or *) LinearRecurrence[{4, -6, 4, -1}, {216, 4096, 17576, 46656}, 30] (* Harvey P. Dale, Nov 05 2019 *)
PROG
(Magma) [(10*n+6)^3: n in [0..35]]; // Vincenzo Librandi, Aug 03 2011
(PARI) vector(40, n, n--; (10*n+6)^3) \\ Michel Marcus, Aug 04 2021
CROSSREFS
Sequence in context: A152241 A183785 A282019 * A269190 A017463 A183617
KEYWORD
nonn,easy
STATUS
approved