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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.

A356933 Number of multisets of multisets, each of odd size, whose multiset union is a size-n multiset covering an initial interval.

Table of values

n a(n)
0 1
1 1
2 2
3 8
4 28
5 108
6 524
7 2608
8 14176
9 86576
10 550672
11 3782496
12 27843880
13 214071392
14 1751823600
15 15041687664
16 134843207240
17 1269731540864
18 12427331494304
19 126619822952928
20 1341762163389920
21 14712726577081248
22 167209881188545344
23 1963715680476759040
24 23794190474350155856

List of values

[1, 1, 2, 8, 28, 108, 524, 2608, 14176, 86576, 550672, 3782496, 27843880, 214071392, 1751823600, 15041687664, 134843207240, 1269731540864, 12427331494304, 126619822952928, 1341762163389920, 14712726577081248, 167209881188545344, 1963715680476759040, 23794190474350155856]

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

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