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.

A159729 Number of permutations of 4 indistinguishable copies of 1..n arranged in a circle with exactly 3 local maxima.

Table of values

n a(n)
1 0
2 24
3 13896
4 3347088
5 595973360
6 93992305032
7 14015268159704
8 2027725518697376
9 287867804621478048
10 40320948446041301720
11 5589326195307268168392
12 768314046269046341078064
13 104876358654665681729030736
14 14230976452809572524526026408
15 1921184312523441298037576065080

List of values

[0, 24, 13896, 3347088, 595973360, 93992305032, 14015268159704, 2027725518697376, 287867804621478048, 40320948446041301720, 5589326195307268168392, 768314046269046341078064, 104876358654665681729030736, 14230976452809572524526026408, 1921184312523441298037576065080]

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

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