A181851 - cp's OEIS frontend

A181851 Triangle read by rows: T(n,k) = Sum_{c in composition(n,k)} lcm(c).

n	a(n)
1	1
2	2
3	1
4	3
5	4
6	1
7	4
8	8
9	6
10	1
11	5
12	20
13	15
14	8
15	1
16	6
17	21
18	50
19	24
20	10
21	1
22	7
23	56
24	66
25	96
26	35
27	12
28	1
29	8
30	60
31	180
32	160
33	160
34	48
35	14
36	1
37	9
38	96
39	264
40	432
41	325
42	244
43	63
44	16
45	1
46	10
47	105
48	510
49	776
50	892
51	585
52	350
53	80
54	18
55	1
56	11
57	220
58	567
59	1704
60	1835
61	1668
62	966
63	480
64	99
65	20
66	1

[1, 2, 1, 3, 4, 1, 4, 8, 6, 1, 5, 20, 15, 8, 1, 6, 21, 50, 24, 10, 1, 7, 56, 66, 96, 35, 12, 1, 8, 60, 180, 160, 160, 48, 14, 1, 9, 96, 264, 432, 325, 244, 63, 16, 1, 10, 105, 510, 776, 892, 585, 350, 80, 18, 1, 11, 220, 567, 1704, 1835, 1668, 966, 480, 99, 20, 1]

cp's OEIS Frontend

A181851 Triangle read by rows: T(n,k) = Sum_{c in composition(n,k)} lcm(c).

Table of values

List of values