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.

A340987 Number of colored integer partitions of 2n such that all colors from an n-set are used.

Table of values

n a(n)
0 1
1 2
2 10
3 59
4 362
5 2287
6 14719
7 95965
8 631714
9 4189334
10 27946335
11 187319827
12 1260570515
13 8511460908
14 57634550179
15 391232510284
16 2661483301282
17 18140003082945
18 123846214549072
19 846801764644618
20 5797865791444367
21 39745254613927264
22 272762265331208465

List of values

[1, 2, 10, 59, 362, 2287, 14719, 95965, 631714, 4189334, 27946335, 187319827, 1260570515, 8511460908, 57634550179, 391232510284, 2661483301282, 18140003082945, 123846214549072, 846801764644618, 5797865791444367, 39745254613927264, 272762265331208465]