A333822 - cp's OEIS frontend

A333822 Number of ways to write n as the difference of two k-gonal numbers for k >= 3.

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

[1, 3, 3, 5, 4, 6, 4, 8, 5, 7, 6, 8, 5, 10, 7, 9, 6, 8, 6, 13, 8, 8, 7, 12, 6, 12, 8, 10, 9, 10, 7, 13, 8, 12, 10, 13, 6, 13, 9, 12, 8, 10, 8, 17, 11, 10, 10, 14, 8, 16, 9, 10, 9, 14, 10, 19, 9, 8, 10, 14, 7, 16, 12, 19, 12, 12, 7, 14, 12, 12, 11, 14, 8]

cp's OEIS Frontend

A333822 Number of ways to write n as the difference of two k-gonal numbers for k >= 3.

Table of values

List of values

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

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

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