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.

A151654 Number of permutations of 6 indistinguishable copies of 1..n with exactly 5 adjacent element pairs in decreasing order.

Table of values

n a(n)
1 0
2 36
3 4050864
4 10490842656
5 10255094095176
6 6781036059518868
7 3744571580295610680
8 1893138497272086513120
9 915533370856221482817936
10 432873619819347725868506292
11 202329942824085294375700974144
12 94022530911932061378520715448384
13 43564340849890810938403538912669496

List of values

[0, 36, 4050864, 10490842656, 10255094095176, 6781036059518868, 3744571580295610680, 1893138497272086513120, 915533370856221482817936, 432873619819347725868506292, 202329942824085294375700974144, 94022530911932061378520715448384, 43564340849890810938403538912669496]

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

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