A374319 - cp's OEIS frontend

A374319 Number of partitions of [n] such that the number of blocks of size k is zero or a divisor of k for every k.

n	a(n)
0	1
1	1
2	1
3	4
4	8
5	31
6	82
7	274
8	1626
9	5135
10	26751
11	125489
12	1020692
13	4333707
14	31083613
15	132960104
16	1323145731
17	8282668312
18	70017330978
19	423293287673
20	3135764479898
21	30762429056580
22	269133472001923
23	2185746568531948
24	15121514389566421
25	147045774699171957

[1, 1, 1, 4, 8, 31, 82, 274, 1626, 5135, 26751, 125489, 1020692, 4333707, 31083613, 132960104, 1323145731, 8282668312, 70017330978, 423293287673, 3135764479898, 30762429056580, 269133472001923, 2185746568531948, 15121514389566421, 147045774699171957]

cp's OEIS Frontend

A374319 Number of partitions of [n] such that the number of blocks of size k is zero or a divisor of k for every k.

Table of values

List of values