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.

A160429 First differences of A160428.

Original entry on oeis.org

8, 56, 56, 392, 56, 392, 392, 2744, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 392, 2744, 2744, 19208, 2744, 19208, 19208, 134456, 56, 392, 392, 2744, 392, 2744, 2744, 19208, 392, 2744, 2744, 19208, 2744, 19208, 19208
Offset: 1

Views

Author

Omar E. Pol, Jun 01 2009

Keywords

Crossrefs

Programs

  • PARI
    a(n) = 8*7^hammingweight(n-1); \\ Jinyuan Wang, Mar 14 2020

Formula

a(n) = 8 * 7^A000120(n-1) for n>=1.

Extensions

Formula and more terms from Nathaniel Johnston, Nov 14 2010
More terms from Jinyuan Wang, Mar 14 2020