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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.

A305198 Number of set partitions of [2n+1] with symmetric block size list of length A109613(n).

Table of values

n a(n)
0 1
1 1
2 7
3 56
4 470
5 10299
6 91925
7 3939653
8 36298007
9 2571177913
10 24158837489
11 2557117944391
12 24350208829581
13 3601150175699409
14 34626777577615921
15 6820331445080882282
16 66066554102006208712
17 16719951521837764142510
18 162903256982698962545956

List of values

[1, 1, 7, 56, 470, 10299, 91925, 3939653, 36298007, 2571177913, 24158837489, 2557117944391, 24350208829581, 3601150175699409, 34626777577615921, 6820331445080882282, 66066554102006208712, 16719951521837764142510, 162903256982698962545956]

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

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