A299762 - cp's OEIS frontend

A299762 Irregular triangle T(n,k) read by rows in which row n lists the positive integers whose sum of divisors is n, or 0 if no such integer exists.

n	a(n)
1	1
2	0
3	2
4	3
5	0
6	5
7	4
8	7
9	0
10	0
11	0
12	6
13	11
14	9
15	13
16	8
17	0
18	0
19	10
20	17
21	0
22	19
23	0
24	0
25	0
26	14
27	15
28	23
29	0
30	0
31	0
32	12
33	0
34	29
35	16
36	25
37	21
38	31
39	0
40	0
41	0
42	22
43	0
44	37
45	18
46	27
47	0
48	20
49	26
50	41
51	0
52	43
53	0
54	0
55	0
56	33
57	35
58	47
59	0
60	0
61	0
62	0
63	0
64	34
65	53
66	0
67	28
68	39
69	49
70	0
71	0
72	24
73	38
74	59
75	0
76	61
77	32
78	0
79	0
80	0
81	0
82	67
83	0
84	0
85	0
86	30
87	46
88	51
89	55
90	71
91	0
92	73

[1, 0, 2, 3, 0, 5, 4, 7, 0, 0, 0, 6, 11, 9, 13, 8, 0, 0, 10, 17, 0, 19, 0, 0, 0, 14, 15, 23, 0, 0, 0, 12, 0, 29, 16, 25, 21, 31, 0, 0, 0, 22, 0, 37, 18, 27, 0, 20, 26, 41, 0, 43, 0, 0, 0, 33, 35, 47, 0, 0, 0, 0, 0, 34, 53, 0, 28, 39, 49, 0, 0, 24, 38, 59, 0, 61, 32, 0, 0, 0, 0, 67, 0, 0, 0, 30, 46, 51, 55, 71, 0, 73]

cp's OEIS Frontend

A299762 Irregular triangle T(n,k) read by rows in which row n lists the positive integers whose sum of divisors is n, or 0 if no such integer exists.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	3
5	0
6	5
7	4
8	7
9	0
10	0
11	0
12	6
13	11
14	9
15	13
16	8
17	0
18	0
19	10
20	17
21	0
22	19
23	0
24	0
25	0
26	14
27	15
28	23
29	0
30	0
31	0
32	12
33	0
34	29
35	16
36	25
37	21
38	31
39	0
40	0
41	0
42	22
43	0
44	37
45	18
46	27
47	0
48	20
49	26
50	41
51	0
52	43
53	0
54	0
55	0
56	33
57	35
58	47
59	0
60	0
61	0
62	0
63	0
64	34
65	53
66	0
67	28
68	39
69	49
70	0
71	0
72	24
73	38
74	59
75	0
76	61
77	32
78	0
79	0
80	0
81	0
82	67
83	0
84	0
85	0
86	30
87	46
88	51
89	55
90	71
91	0
92	73

n	a(n)
1	1
2	0
3	2
4	3
5	0
6	5
7	4
8	7
9	0
10	0
11	0
12	6
13	11
14	9
15	13
16	8
17	0
18	0
19	10
20	17
21	0
22	19
23	0
24	0
25	0
26	14
27	15
28	23
29	0
30	0
31	0
32	12
33	0
34	29
35	16
36	25
37	21
38	31
39	0
40	0
41	0
42	22
43	0
44	37
45	18
46	27
47	0
48	20
49	26
50	41
51	0
52	43
53	0
54	0
55	0
56	33
57	35
58	47
59	0
60	0
61	0
62	0
63	0
64	34
65	53
66	0
67	28
68	39
69	49
70	0
71	0
72	24
73	38
74	59
75	0
76	61
77	32
78	0
79	0
80	0
81	0
82	67
83	0
84	0
85	0
86	30
87	46
88	51
89	55
90	71
91	0
92	73

n	a(n)
1	1
2	0
3	2
4	3
5	0
6	5
7	4
8	7
9	0
10	0
11	0
12	6
13	11
14	9
15	13
16	8
17	0
18	0
19	10
20	17
21	0
22	19
23	0
24	0
25	0
26	14
27	15
28	23
29	0
30	0
31	0
32	12
33	0
34	29
35	16
36	25
37	21
38	31
39	0
40	0
41	0
42	22
43	0
44	37
45	18
46	27
47	0
48	20
49	26
50	41
51	0
52	43
53	0
54	0
55	0
56	33
57	35
58	47
59	0
60	0
61	0
62	0
63	0
64	34
65	53
66	0
67	28
68	39
69	49
70	0
71	0
72	24
73	38
74	59
75	0
76	61
77	32
78	0
79	0
80	0
81	0
82	67
83	0
84	0
85	0
86	30
87	46
88	51
89	55
90	71
91	0
92	73