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.

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A259700 a(n) = Sum_{k=2..n-1} k*A259698(n,k).

Original entry on oeis.org

1, 3, 8, 25, 72, 229, 689, 2224, 6875, 22457, 70767
Offset: 2

Views

Author

N. J. A. Sloane, Jul 05 2015

Keywords

Comments

Sade gives a(5)=25, but that is wrong.

Links

Crossrefs

Cf. A259698, A000682.

Extensions

Corrected and extended by Roger Ford, Jul 13 2016

A274643 Erroneous version of A259698.

Original entry on oeis.org

1, 1, 1, 1, 2, 1, 1, 4, 4, 1, 1, 6, 10, 6, 1, 1, 10, 23, 22, 9, 1, 1, 14, 44, 61, 41, 12, 1, 1, 22, 88, 158, 147, 71, 16, 1, 1, 30, 151, 353, 436, 300, 114, 20, 1
Offset: 2

Views

Author

Sean A. Irvine, Jun 01 2025

Keywords

Comments

Included in accordance with OEIS policy of including published but incorrect sequences to serve as pointers to the correct versions.

Links

Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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