A276031 - cp's OEIS frontend

A276031 Number of edges in the graded poset of the partitions of n taken modulo 3, where a partition into k parts is joined to a partition into k+1 parts if the latter is a refinement of the former.

n	a(n)
1	0
2	1
3	2
4	5
5	9
6	14
7	21
8	30
9	41
10	54
11	70
12	89
13	110
14	135
15	164
16	195
17	231
18	272
19	315
20	364
21	419
22	476
23	540
24	611
25	684
26	765
27	854
28	945
29	1045
30	1154
31	1265
32	1386
33	1517
34	1650
35	1794
36	1949
37	2106
38	2275
39	2456
40	2639
41	2835
42	3044
43	3255
44	3480
45	3719
46	3960
47	4216
48	4487
49	4760
50	5049
51	5354

[0, 1, 2, 5, 9, 14, 21, 30, 41, 54, 70, 89, 110, 135, 164, 195, 231, 272, 315, 364, 419, 476, 540, 611, 684, 765, 854, 945, 1045, 1154, 1265, 1386, 1517, 1650, 1794, 1949, 2106, 2275, 2456, 2639, 2835, 3044, 3255, 3480, 3719, 3960, 4216, 4487, 4760, 5049, 5354]

cp's OEIS Frontend

A276031 Number of edges in the graded poset of the partitions of n taken modulo 3, where a partition into k parts is joined to a partition into k+1 parts if the latter is a refinement of the former.

Table of values

List of values