A275100 - cp's OEIS frontend

A275100 Number of set partitions of [3*n] such that within each block the numbers of elements from all residue classes modulo n are equal for n>0, a(0)=1.

n	a(n)
0	1
1	5
2	16
3	64
4	298
5	1540
6	8506
7	48844
8	286498
9	1699300
10	10136746
11	60643324
12	363328498
13	2178376660
14	13065476986
15	78378513004
16	470228031298
17	2821239047620
18	16927046865226
19	101561118929884
20	609363226794898
21	3656168900416180
22	21936982021437466
23	131621797985445964

[1, 5, 16, 64, 298, 1540, 8506, 48844, 286498, 1699300, 10136746, 60643324, 363328498, 2178376660, 13065476986, 78378513004, 470228031298, 2821239047620, 16927046865226, 101561118929884, 609363226794898, 3656168900416180, 21936982021437466, 131621797985445964]

cp's OEIS Frontend

A275100 Number of set partitions of [3*n] such that within each block the numbers of elements from all residue classes modulo n are equal for n>0, a(0)=1.

Table of values

List of values