A002849 - cp's OEIS frontend

A002849 Number of maximal collections of pairwise disjoint subsets {X,Y,Z} of {1, 2, ..., n}, each satisfying X + Y = Z.

n	a(n)
1	1
2	1
3	1
4	2
5	4
6	6
7	3
8	10
9	25
10	12
11	42
12	8
13	40
14	204
15	21
16	135
17	1002
18	4228
19	720
20	5134
21	29546
22	4079
23	35533
24	3040
25	28777
26	281504
27	20505
28	212283
29	2352469
30	16907265
31	1669221
32	19424213
33	167977344
34	14708525
35	191825926
36	10567748
37	149151774
38	2102286756
39	103372655
40	1534969405

[1, 1, 1, 2, 4, 6, 3, 10, 25, 12, 42, 8, 40, 204, 21, 135, 1002, 4228, 720, 5134, 29546, 4079, 35533, 3040, 28777, 281504, 20505, 212283, 2352469, 16907265, 1669221, 19424213, 167977344, 14708525, 191825926, 10567748, 149151774, 2102286756, 103372655, 1534969405]

cp's OEIS Frontend

A002849 Number of maximal collections of pairwise disjoint subsets {X,Y,Z} of {1, 2, ..., n}, each satisfying X + Y = Z.

Table of values

List of values