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.

A321063 Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=7.

Table of values

n a(n)
7 24176
8 533544
9 16860608
10 707767328
11 37727416576
12 2475764410944
13 195463415776768
14 18237517555977472
15 1982309731660474368
16 248048061418810109952
17 35377310696428547145728
18 5702015244617382235000832
19 1030924606332352092323577856
20 207727724955575700214833766400

List of values

[24176, 533544, 16860608, 707767328, 37727416576, 2475764410944, 195463415776768, 18237517555977472, 1982309731660474368, 248048061418810109952, 35377310696428547145728, 5702015244617382235000832, 1030924606332352092323577856, 207727724955575700214833766400]

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

Content is available under The OEIS End-User License Agreement.