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.

A152508 1/10 of the number of permutations of 4 indistinguishable copies of 1..n with exactly 6 local maxima.

Table of values

n a(n)
1 0
2 0
3 42
4 1836695
5 10530242387
6 29832986150825
7 60695128902586540
8 103817995457729295887
9 161328267155502711433605
10 237364194180589518867292325
11 338385077937653019716292059598
12 473635313924991038119333176290875
13 655918703527056982804817522787817607

List of values

[0, 0, 42, 1836695, 10530242387, 29832986150825, 60695128902586540, 103817995457729295887, 161328267155502711433605, 237364194180589518867292325, 338385077937653019716292059598, 473635313924991038119333176290875, 655918703527056982804817522787817607]

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

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