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.

A078601 Number of ways to lace a shoe that has n pairs of eyelets, assuming the lacing satisfies certain conditions.

Table of values

n a(n)
1 1
2 3
3 42
4 1080
5 51840
6 3758400
7 382838400
8 52733721600
9 9400624128000
10 2105593491456000
11 579255485276160000
12 191957359005941760000
13 75420399121328701440000
14 34668462695110852608000000
15 18432051070888873171353600000
16 11223248177765618214764544000000
17 7759395812038133743242706944000000

List of values

[1, 3, 42, 1080, 51840, 3758400, 382838400, 52733721600, 9400624128000, 2105593491456000, 579255485276160000, 191957359005941760000, 75420399121328701440000, 34668462695110852608000000, 18432051070888873171353600000, 11223248177765618214764544000000, 7759395812038133743242706944000000]

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

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