cp's OEIS Frontend

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.

A363454 Number of partitions of [n] such that the number of blocks containing only odd elements equals the number of blocks containing only even elements and no block contains both odd and even elements.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 2
5 4
6 11
7 28
8 87
9 266
10 952
11 3381
12 13513
13 53915
14 237113
15 1046732
16 5016728
17 24186664
18 125121009
19 652084528
20 3615047527
21 20211789423
22 119384499720
23 711572380960
24 4455637803543
25 28162688795697
26 186152008588691
27 1242276416218540
28 8636436319397292

List of values

[1, 0, 1, 1, 2, 4, 11, 28, 87, 266, 952, 3381, 13513, 53915, 237113, 1046732, 5016728, 24186664, 125121009, 652084528, 3615047527, 20211789423, 119384499720, 711572380960, 4455637803543, 28162688795697, 186152008588691, 1242276416218540, 8636436319397292]