A105475 - cp's OEIS frontend

A105475 Triangle read by rows: T(n,k) is number of compositions of n into k parts when each even part can be of two kinds.

n	a(n)
1	1
2	2
3	1
4	1
5	4
6	1
7	2
8	6
9	6
10	1
11	1
12	8
13	15
14	8
15	1
16	2
17	11
18	26
19	28
20	10
21	1
22	1
23	12
24	42
25	64
26	45
27	12
28	1
29	2
30	16
31	60
32	122
33	130
34	66
35	14
36	1
37	1
38	16
39	82
40	208
41	295
42	232
43	91
44	16
45	1
46	2
47	21
48	108
49	324
50	582
51	621
52	378
53	120
54	18
55	1
56	1
57	20
58	135
59	480
60	1035
61	1404
62	1176
63	576
64	153
65	20
66	1
67	2
68	26
69	170
70	675

[1, 2, 1, 1, 4, 1, 2, 6, 6, 1, 1, 8, 15, 8, 1, 2, 11, 26, 28, 10, 1, 1, 12, 42, 64, 45, 12, 1, 2, 16, 60, 122, 130, 66, 14, 1, 1, 16, 82, 208, 295, 232, 91, 16, 1, 2, 21, 108, 324, 582, 621, 378, 120, 18, 1, 1, 20, 135, 480, 1035, 1404, 1176, 576, 153, 20, 1, 2, 26, 170, 675]

cp's OEIS Frontend

A105475 Triangle read by rows: T(n,k) is number of compositions of n into k parts when each even part can be of two kinds.

Table of values

List of values