A320545 - cp's OEIS frontend

A320545 Number of partitions of n into parts of exactly three sorts which are introduced in ascending order such that sorts of adjacent parts are different.

n	a(n)
3	1
4	4
5	12
6	31
7	73
8	165
9	357
10	760
11	1582
12	3270
13	6678
14	13589
15	27482
16	55468
17	111588
18	224259
19	449908
20	902106
21	1807173
22	3619162
23	7244557
24	14499238
25	29011551
26	58044194
27	116115782
28	232275383
29	464607730
30	929306306
31	1858730674
32	3717648658
33	7435541392
34	14871467784

[1, 4, 12, 31, 73, 165, 357, 760, 1582, 3270, 6678, 13589, 27482, 55468, 111588, 224259, 449908, 902106, 1807173, 3619162, 7244557, 14499238, 29011551, 58044194, 116115782, 232275383, 464607730, 929306306, 1858730674, 3717648658, 7435541392, 14871467784]

cp's OEIS Frontend

A320545 Number of partitions of n into parts of exactly three sorts which are introduced in ascending order such that sorts of adjacent parts are different.

Table of values

List of values