A181842 - cp's OEIS frontend

A181842 Triangle read by rows: T(n,k) = Sum_{c in partition(n,n-k+1)} lcm(c).

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	5
10	4
11	1
12	2
13	5
14	10
15	5
16	1
17	2
18	5
19	12
20	12
21	6
22	1
23	2
24	5
25	12
26	18
27	28
28	7
29	1
30	2
31	5
32	12
33	20
34	38
35	32
36	8
37	1
38	2
39	5
40	12
41	20
42	44
43	57
44	48
45	9
46	1
47	2
48	5
49	12
50	20
51	46
52	67
53	100
54	55
55	10

[1, 1, 2, 1, 2, 3, 1, 2, 5, 4, 1, 2, 5, 10, 5, 1, 2, 5, 12, 12, 6, 1, 2, 5, 12, 18, 28, 7, 1, 2, 5, 12, 20, 38, 32, 8, 1, 2, 5, 12, 20, 44, 57, 48, 9, 1, 2, 5, 12, 20, 46, 67, 100, 55, 10]

cp's OEIS Frontend

A181842 Triangle read by rows: T(n,k) = Sum_{c in partition(n,n-k+1)} lcm(c).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	5
10	4
11	1
12	2
13	5
14	10
15	5
16	1
17	2
18	5
19	12
20	12
21	6
22	1
23	2
24	5
25	12
26	18
27	28
28	7
29	1
30	2
31	5
32	12
33	20
34	38
35	32
36	8
37	1
38	2
39	5
40	12
41	20
42	44
43	57
44	48
45	9
46	1
47	2
48	5
49	12
50	20
51	46
52	67
53	100
54	55
55	10

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	5
10	4
11	1
12	2
13	5
14	10
15	5
16	1
17	2
18	5
19	12
20	12
21	6
22	1
23	2
24	5
25	12
26	18
27	28
28	7
29	1
30	2
31	5
32	12
33	20
34	38
35	32
36	8
37	1
38	2
39	5
40	12
41	20
42	44
43	57
44	48
45	9
46	1
47	2
48	5
49	12
50	20
51	46
52	67
53	100
54	55
55	10

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	5
10	4
11	1
12	2
13	5
14	10
15	5
16	1
17	2
18	5
19	12
20	12
21	6
22	1
23	2
24	5
25	12
26	18
27	28
28	7
29	1
30	2
31	5
32	12
33	20
34	38
35	32
36	8
37	1
38	2
39	5
40	12
41	20
42	44
43	57
44	48
45	9
46	1
47	2
48	5
49	12
50	20
51	46
52	67
53	100
54	55
55	10