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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.

A316972 Number of connected multiset partitions of {1, 1, 2, 2, 3, 3, ..., n, n}.

Table of values

n a(n)
0 1
1 2
2 5
3 28
4 277
5 3985
6 76117
7 1833187
8 53756682
9 1871041538
10 75809298105
11 3521419837339
12 185235838688677
13 10923147890901151
14 715989783027216302
15 51793686238309903860
16 4109310551278549543317
17 355667047514571431358297
18 33422937748872646130124797

List of values

[1, 2, 5, 28, 277, 3985, 76117, 1833187, 53756682, 1871041538, 75809298105, 3521419837339, 185235838688677, 10923147890901151, 715989783027216302, 51793686238309903860, 4109310551278549543317, 355667047514571431358297, 33422937748872646130124797]

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

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