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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A259057 One-third of the even-indexed entries of A259056.

Original entry on oeis.org

-1, 20, -560, 20160, -887040, 46126080, -2767564800, 188194406400, -14302774886400, 1201433090457600, -110531844322099200, 11053184432209920000, -1193743918678671360000, 138474294566725877760000, -17170812526274008842240000
Offset: 1

Views

Author

Wolfdieter Lang, Jul 07 2015

Keywords

Comments

It is conjectured that this is an integer sequence.
For the odd-indexed entries of A259056 see
(-1)^(n-1)*A034976(n), n >= 1.

Crossrefs

Cf. A034976, A259056.

Formula

a(n) = A259056(2*n)/3, n >= 1.
Showing 1-1 of 1 results.

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

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