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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.

A276900 Number of ordered set partitions of [n] such that for each block b the smallest integer interval containing b has at most ten elements.

Table of values

n a(n)
0 1
1 1
2 3
3 13
4 75
5 541
6 4683
7 47293
8 545835
9 7087261
10 102247563
11 1520385010
12 23523325304
13 380789137336
14 6467270373536
15 115360990236256
16 2161133759447744
17 42490485277902688
18 875847933546165968
19 18903517993567133752
20 426618313415065361204
21 10043227358229156346032

List of values

[1, 1, 3, 13, 75, 541, 4683, 47293, 545835, 7087261, 102247563, 1520385010, 23523325304, 380789137336, 6467270373536, 115360990236256, 2161133759447744, 42490485277902688, 875847933546165968, 18903517993567133752, 426618313415065361204, 10043227358229156346032]

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

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