The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A016827 a(n) = (4n+2)^3. 2
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Michael De Vlieger, Table of n, a(n) for n = 0..10000 Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1). 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) MATHEMATICA Table[(4n+2)^3, {n, 0, 100}] (* Mohammad K. Azarian, Jun 20 2016 *) CROSSREFS Odd bisection of A016743. Subsequence of A000578. Sequence in context: A224096 A224103 A072159 * A239222 A275023 A163289 Adjacent sequences:  A016824 A016825 A016826 * A016828 A016829 A016830 KEYWORD nonn,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 17 01:44 EDT 2021. Contains 343051 sequences. (Running on oeis4.)