cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A016827 a(n) = (4n+2)^3.

Original entry on oeis.org

8, 216, 1000, 2744, 5832, 10648, 17576, 27000, 39304, 54872, 74088, 97336, 125000, 157464, 195112, 238328, 287496, 343000, 405224, 474552, 551368, 636056, 729000, 830584, 941192, 1061208, 1191016
Offset: 0

Views

Author

Keywords

Crossrefs

Odd bisection of A016743.
Subsequence of A000578.

Programs

Formula

G.f.: 8*(1 + 23*x + 23*x^2 + x^3)/(1 - x)^4. - Ilya Gutkovskiy, Jun 21 2016
From Amiram Eldar, Jun 28 2020: (Start)
Sum_{n>=0} 1/a(n) = 7*zeta(3)/64.
Sum_{n>=0} (-1)^n/a(n) = Pi^3/256. (End)
a(n) = 4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). - Wesley Ivan Hurt, Mar 08 2022