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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.

A366449 Number of smooth discrete aggregation functions defined on the finite chain L_n={0,1,...,n-1,n} having neutral element/absorbing element.

Table of values

n a(n)
1 2
2 5
3 18
4 102
5 970
6 15947
7 453872
8 22174642
9 1846384884
10 260939482721
11 62454382216334
12 25285347265901814
13 17304115945924822724
14 20008412370393070905186
15 39078178288867371807316956
16 128893469663525965017925474046
17 717867336460661639426421067202992
18 6750439274904330523572066561554305664

List of values

[2, 5, 18, 102, 970, 15947, 453872, 22174642, 1846384884, 260939482721, 62454382216334, 25285347265901814, 17304115945924822724, 20008412370393070905186, 39078178288867371807316956, 128893469663525965017925474046, 717867336460661639426421067202992, 6750439274904330523572066561554305664]

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

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