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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.

A003316 Sum of lengths of longest increasing subsequences of all permutations of n elements.

Table of values

n a(n)
1 1
2 3
3 12
4 58
5 335
6 2261
7 17465
8 152020
9 1473057
10 15730705
11 183571817
12 2324298010
13 31737207034
14 464904410985
15 7272666016725
16 121007866402968
17 2133917906948645
18 39756493513248129
19 780313261631908137
20 16093326774432620874
21 347958942706716524974

List of values

[1, 3, 12, 58, 335, 2261, 17465, 152020, 1473057, 15730705, 183571817, 2324298010, 31737207034, 464904410985, 7272666016725, 121007866402968, 2133917906948645, 39756493513248129, 780313261631908137, 16093326774432620874, 347958942706716524974]

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

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