A340057 - cp's OEIS frontend

A340057 Irregular triangle read by rows T(n,k) in which row n lists n blocks, where the block m consists of the divisors of m multiplied by A000041(n-m), with 1 <= m <= n.

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	3
10	3
11	2
12	4
13	1
14	3
15	1
16	2
17	4
18	5
19	3
20	6
21	2
22	6
23	1
24	2
25	4
26	1
27	5
28	7
29	5
30	10
31	3
32	9
33	2
34	4
35	8
36	1
37	5
38	1
39	2
40	3
41	6
42	11
43	7
44	14
45	5
46	15
47	3
48	6
49	12
50	2
51	10
52	1
53	2
54	3
55	6
56	1
57	7
58	15
59	11
60	22
61	7
62	21
63	5
64	10
65	20
66	3
67	15
68	2
69	4
70	6
71	12
72	1
73	7
74	1
75	2
76	4
77	8
78	22
79	15
80	30
81	11
82	33
83	7
84	14
85	28
86	5
87	25

[1, 1, 1, 2, 2, 1, 2, 1, 3, 3, 2, 4, 1, 3, 1, 2, 4, 5, 3, 6, 2, 6, 1, 2, 4, 1, 5, 7, 5, 10, 3, 9, 2, 4, 8, 1, 5, 1, 2, 3, 6, 11, 7, 14, 5, 15, 3, 6, 12, 2, 10, 1, 2, 3, 6, 1, 7, 15, 11, 22, 7, 21, 5, 10, 20, 3, 15, 2, 4, 6, 12, 1, 7, 1, 2, 4, 8, 22, 15, 30, 11, 33, 7, 14, 28, 5, 25]

cp's OEIS Frontend

A340057 Irregular triangle read by rows T(n,k) in which row n lists n blocks, where the block m consists of the divisors of m multiplied by A000041(n-m), with 1 <= m <= n.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	3
10	3
11	2
12	4
13	1
14	3
15	1
16	2
17	4
18	5
19	3
20	6
21	2
22	6
23	1
24	2
25	4
26	1
27	5
28	7
29	5
30	10
31	3
32	9
33	2
34	4
35	8
36	1
37	5
38	1
39	2
40	3
41	6
42	11
43	7
44	14
45	5
46	15
47	3
48	6
49	12
50	2
51	10
52	1
53	2
54	3
55	6
56	1
57	7
58	15
59	11
60	22
61	7
62	21
63	5
64	10
65	20
66	3
67	15
68	2
69	4
70	6
71	12
72	1
73	7
74	1
75	2
76	4
77	8
78	22
79	15
80	30
81	11
82	33
83	7
84	14
85	28
86	5
87	25

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	3
10	3
11	2
12	4
13	1
14	3
15	1
16	2
17	4
18	5
19	3
20	6
21	2
22	6
23	1
24	2
25	4
26	1
27	5
28	7
29	5
30	10
31	3
32	9
33	2
34	4
35	8
36	1
37	5
38	1
39	2
40	3
41	6
42	11
43	7
44	14
45	5
46	15
47	3
48	6
49	12
50	2
51	10
52	1
53	2
54	3
55	6
56	1
57	7
58	15
59	11
60	22
61	7
62	21
63	5
64	10
65	20
66	3
67	15
68	2
69	4
70	6
71	12
72	1
73	7
74	1
75	2
76	4
77	8
78	22
79	15
80	30
81	11
82	33
83	7
84	14
85	28
86	5
87	25

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	3
10	3
11	2
12	4
13	1
14	3
15	1
16	2
17	4
18	5
19	3
20	6
21	2
22	6
23	1
24	2
25	4
26	1
27	5
28	7
29	5
30	10
31	3
32	9
33	2
34	4
35	8
36	1
37	5
38	1
39	2
40	3
41	6
42	11
43	7
44	14
45	5
46	15
47	3
48	6
49	12
50	2
51	10
52	1
53	2
54	3
55	6
56	1
57	7
58	15
59	11
60	22
61	7
62	21
63	5
64	10
65	20
66	3
67	15
68	2
69	4
70	6
71	12
72	1
73	7
74	1
75	2
76	4
77	8
78	22
79	15
80	30
81	11
82	33
83	7
84	14
85	28
86	5
87	25