A193280 - cp's OEIS frontend

A193280 Triangle read by rows: row n contains, in increasing order, all the distinct sums of distinct proper divisors of n.

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	3
7	1
8	1
9	2
10	3
11	4
12	5
13	6
14	1
15	1
16	2
17	3
18	4
19	5
20	6
21	7
22	1
23	3
24	4
25	1
26	2
27	3
28	5
29	6
30	7
31	8
32	1
33	1
34	2
35	3
36	4
37	5
38	6
39	7
40	8
41	9
42	10
43	11
44	12
45	13
46	14
47	15
48	16
49	1
50	1
51	2
52	3
53	7
54	8
55	9
56	10
57	1
58	3
59	4
60	5
61	6
62	8
63	9
64	1
65	2
66	3
67	4
68	5
69	6
70	7
71	8
72	9
73	10
74	11
75	12
76	13
77	14
78	15

[0, 1, 1, 1, 2, 3, 1, 1, 2, 3, 4, 5, 6, 1, 1, 2, 3, 4, 5, 6, 7, 1, 3, 4, 1, 2, 3, 5, 6, 7, 8, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 1, 2, 3, 7, 8, 9, 10, 1, 3, 4, 5, 6, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]

cp's OEIS Frontend

A193280 Triangle read by rows: row n contains, in increasing order, all the distinct sums of distinct proper divisors of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	3
7	1
8	1
9	2
10	3
11	4
12	5
13	6
14	1
15	1
16	2
17	3
18	4
19	5
20	6
21	7
22	1
23	3
24	4
25	1
26	2
27	3
28	5
29	6
30	7
31	8
32	1
33	1
34	2
35	3
36	4
37	5
38	6
39	7
40	8
41	9
42	10
43	11
44	12
45	13
46	14
47	15
48	16
49	1
50	1
51	2
52	3
53	7
54	8
55	9
56	10
57	1
58	3
59	4
60	5
61	6
62	8
63	9
64	1
65	2
66	3
67	4
68	5
69	6
70	7
71	8
72	9
73	10
74	11
75	12
76	13
77	14
78	15

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	3
7	1
8	1
9	2
10	3
11	4
12	5
13	6
14	1
15	1
16	2
17	3
18	4
19	5
20	6
21	7
22	1
23	3
24	4
25	1
26	2
27	3
28	5
29	6
30	7
31	8
32	1
33	1
34	2
35	3
36	4
37	5
38	6
39	7
40	8
41	9
42	10
43	11
44	12
45	13
46	14
47	15
48	16
49	1
50	1
51	2
52	3
53	7
54	8
55	9
56	10
57	1
58	3
59	4
60	5
61	6
62	8
63	9
64	1
65	2
66	3
67	4
68	5
69	6
70	7
71	8
72	9
73	10
74	11
75	12
76	13
77	14
78	15

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	3
7	1
8	1
9	2
10	3
11	4
12	5
13	6
14	1
15	1
16	2
17	3
18	4
19	5
20	6
21	7
22	1
23	3
24	4
25	1
26	2
27	3
28	5
29	6
30	7
31	8
32	1
33	1
34	2
35	3
36	4
37	5
38	6
39	7
40	8
41	9
42	10
43	11
44	12
45	13
46	14
47	15
48	16
49	1
50	1
51	2
52	3
53	7
54	8
55	9
56	10
57	1
58	3
59	4
60	5
61	6
62	8
63	9
64	1
65	2
66	3
67	4
68	5
69	6
70	7
71	8
72	9
73	10
74	11
75	12
76	13
77	14
78	15