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.

A159733 Number of permutations of 5 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.

Table of values

n a(n)
2 10
3 90
4 720
5 5400
6 38880
7 272160
8 1866240
9 12597120
10 83980800
11 554273280
12 3627970560
13 23581808640
14 152374763520
15 979552051200
16 6269133127680
17 39965723688960
18 253899891671040
19 1608032647249920
20 10155995666841600

List of values

[10, 90, 720, 5400, 38880, 272160, 1866240, 12597120, 83980800, 554273280, 3627970560, 23581808640, 152374763520, 979552051200, 6269133127680, 39965723688960, 253899891671040, 1608032647249920, 10155995666841600]

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

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