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.

A169934 Number of permutations of 1..n with the number moved left exceeding the number moved right by 2.

Original entry on oeis.org

0, 0, 0, 1, 5, 66, 392, 4859, 34659, 482272, 4099634, 65762489, 653977909, 12026621478, 137361430156, 2862534403223, 36968414699239, 862935261673212, 12440701298168534, 321935664074780549, 5126628962937663529, 145768013651370381026, 2541561479354892816304
Offset: 1

Views

Author

R. H. Hardin, Jul 19 2010

Keywords

Crossrefs

Column k=2 (or k=-2) of A062866.
Equal number moved left and right, see A062868.

Extensions

a(19)-a(20) from Alois P. Heinz, Jul 31 2018
a(21)-a(23) from Alois P. Heinz, Apr 28 2024