A343408 - cp's OEIS frontend

A343408 Sum of proper divisors of n that are triangular numbers.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	4
10	1
11	1
12	10
13	1
14	1
15	4
16	1
17	1
18	10
19	1
20	11
21	4
22	1
23	1
24	10
25	1
26	1
27	4
28	1
29	1
30	35
31	1
32	1
33	4
34	1
35	1
36	10
37	1
38	1
39	4
40	11
41	1
42	31
43	1
44	1
45	19
46	1
47	1
48	10
49	1
50	11
51	4
52	1
53	1
54	10
55	1
56	29
57	4
58	1
59	1
60	35
61	1
62	1
63	25
64	1
65	1
66	10
67	1
68	1
69	4
70	11
71	1
72	46
73	1
74	1
75	19
76	1
77	1
78	10
79	1
80	11
81	4
82	1
83	1
84	59
85	1
86	1
87	4
88	1
89	1
90	80
91	1
92	1
93	4
94	1
95	1
96	10

[0, 1, 1, 1, 1, 4, 1, 1, 4, 1, 1, 10, 1, 1, 4, 1, 1, 10, 1, 11, 4, 1, 1, 10, 1, 1, 4, 1, 1, 35, 1, 1, 4, 1, 1, 10, 1, 1, 4, 11, 1, 31, 1, 1, 19, 1, 1, 10, 1, 11, 4, 1, 1, 10, 1, 29, 4, 1, 1, 35, 1, 1, 25, 1, 1, 10, 1, 1, 4, 11, 1, 46, 1, 1, 19, 1, 1, 10, 1, 11, 4, 1, 1, 59, 1, 1, 4, 1, 1, 80, 1, 1, 4, 1, 1, 10]

cp's OEIS Frontend

A343408 Sum of proper divisors of n that are triangular numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	4
10	1
11	1
12	10
13	1
14	1
15	4
16	1
17	1
18	10
19	1
20	11
21	4
22	1
23	1
24	10
25	1
26	1
27	4
28	1
29	1
30	35
31	1
32	1
33	4
34	1
35	1
36	10
37	1
38	1
39	4
40	11
41	1
42	31
43	1
44	1
45	19
46	1
47	1
48	10
49	1
50	11
51	4
52	1
53	1
54	10
55	1
56	29
57	4
58	1
59	1
60	35
61	1
62	1
63	25
64	1
65	1
66	10
67	1
68	1
69	4
70	11
71	1
72	46
73	1
74	1
75	19
76	1
77	1
78	10
79	1
80	11
81	4
82	1
83	1
84	59
85	1
86	1
87	4
88	1
89	1
90	80
91	1
92	1
93	4
94	1
95	1
96	10

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	4
10	1
11	1
12	10
13	1
14	1
15	4
16	1
17	1
18	10
19	1
20	11
21	4
22	1
23	1
24	10
25	1
26	1
27	4
28	1
29	1
30	35
31	1
32	1
33	4
34	1
35	1
36	10
37	1
38	1
39	4
40	11
41	1
42	31
43	1
44	1
45	19
46	1
47	1
48	10
49	1
50	11
51	4
52	1
53	1
54	10
55	1
56	29
57	4
58	1
59	1
60	35
61	1
62	1
63	25
64	1
65	1
66	10
67	1
68	1
69	4
70	11
71	1
72	46
73	1
74	1
75	19
76	1
77	1
78	10
79	1
80	11
81	4
82	1
83	1
84	59
85	1
86	1
87	4
88	1
89	1
90	80
91	1
92	1
93	4
94	1
95	1
96	10

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	4
10	1
11	1
12	10
13	1
14	1
15	4
16	1
17	1
18	10
19	1
20	11
21	4
22	1
23	1
24	10
25	1
26	1
27	4
28	1
29	1
30	35
31	1
32	1
33	4
34	1
35	1
36	10
37	1
38	1
39	4
40	11
41	1
42	31
43	1
44	1
45	19
46	1
47	1
48	10
49	1
50	11
51	4
52	1
53	1
54	10
55	1
56	29
57	4
58	1
59	1
60	35
61	1
62	1
63	25
64	1
65	1
66	10
67	1
68	1
69	4
70	11
71	1
72	46
73	1
74	1
75	19
76	1
77	1
78	10
79	1
80	11
81	4
82	1
83	1
84	59
85	1
86	1
87	4
88	1
89	1
90	80
91	1
92	1
93	4
94	1
95	1
96	10