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.

A152502 1/12 of the number of permutations of 3 indistinguishable copies of 1..n with exactly 5 local maxima.

Table of values

n a(n)
1 0
2 0
3 1
4 7274
5 6251162
6 2764274116
7 897380159188
8 247392790837624
9 62200280199674352
10 14820288466400312448
11 3420153590479988396800
12 774303834249035054901248
13 173288568985609322651099136
14 38513999874946087671220207616
15 8524401267844398602674455314432

List of values

[0, 0, 1, 7274, 6251162, 2764274116, 897380159188, 247392790837624, 62200280199674352, 14820288466400312448, 3420153590479988396800, 774303834249035054901248, 173288568985609322651099136, 38513999874946087671220207616, 8524401267844398602674455314432]

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

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