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.

A152501 1/8 the number of permutations of 3 indistinguishable copies of 1..n with exactly 4 local maxima.

Table of values

n a(n)
1 0
2 0
3 46
4 22615
5 5036741
6 819235874
7 114962084772
8 14974498962192
9 1876234090571968
10 230313563301166336
11 27966954502164518912
12 3376705184454377873408
13 406486565581361073979392
14 48857132166440216820449280
15 5867654791849010140880306176
16 704409107074292841154786361344

List of values

[0, 0, 46, 22615, 5036741, 819235874, 114962084772, 14974498962192, 1876234090571968, 230313563301166336, 27966954502164518912, 3376705184454377873408, 406486565581361073979392, 48857132166440216820449280, 5867654791849010140880306176, 704409107074292841154786361344]

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

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