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.

A159725 Number of permutations of 3 indistinguishable copies of 1..n arranged in a circle with exactly 5 local maxima.

Table of values

n a(n)
1 0
2 0
3 0
4 45888
5 72621240
6 44981038296
7 18389612809680
8 6040299916376448
9 1749772454946512832
10 469799260595276780160
11 120267085682566659944448
12 29853755210933389459501056
13 7260112922454133870956552192
14 1740894557985015492853351907328
15 413292356519150082930093737902080

List of values

[0, 0, 0, 45888, 72621240, 44981038296, 18389612809680, 6040299916376448, 1749772454946512832, 469799260595276780160, 120267085682566659944448, 29853755210933389459501056, 7260112922454133870956552192, 1740894557985015492853351907328, 413292356519150082930093737902080]

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

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