A280851 - cp's OEIS frontend

A280851 Irregular triangle read by rows in which row n lists the subparts of the symmetric representation of sigma(n), ordered by order of appearance in the structure, from left to right.

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

[1, 3, 2, 2, 7, 3, 3, 11, 1, 4, 4, 15, 5, 3, 5, 9, 9, 6, 6, 23, 5, 7, 7, 12, 12, 8, 7, 1, 8, 31, 9, 9, 35, 2, 2, 10, 10, 39, 3, 11, 5, 5, 11, 18, 18, 12, 12, 47, 13, 13, 5, 13, 21, 21, 14, 6, 6, 14, 55, 1, 15, 15, 59, 3, 7, 3, 16, 16, 63, 17, 7, 7, 17, 27, 27, 18, 9, 3, 18, 71, 10, 10, 19, 19, 30, 30]

cp's OEIS Frontend

A280851 Irregular triangle read by rows in which row n lists the subparts of the symmetric representation of sigma(n), ordered by order of appearance in the structure, from left to right.

Table of values

List of values

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

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

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