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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.

A363451 Number of partitions of [n] such that the number of blocks containing only odd elements equals the number of blocks containing only even elements.

Table of values

n a(n)
0 1
1 0
2 2
3 2
4 9
5 23
6 99
7 353
8 1778
9 7927
10 45273
11 238797
12 1526331
13 9215950
14 65020448
15 439742641
16 3388075807
17 25270974635
18 210763775071
19 1713657668021
20 15359474721088
21 134902169999841
22 1291589459223627
23 12165062702520422
24 123780591852786693
25 1242763745129587332

List of values

[1, 0, 2, 2, 9, 23, 99, 353, 1778, 7927, 45273, 238797, 1526331, 9215950, 65020448, 439742641, 3388075807, 25270974635, 210763775071, 1713657668021, 15359474721088, 134902169999841, 1291589459223627, 12165062702520422, 123780591852786693, 1242763745129587332]

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

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