A333529 - cp's OEIS frontend

A333529 Number of triples [n,k,m] with n <= k <= m satisfying T_n + T_k = T_m, where T_i = i*(i+1)/2 are the triangular numbers.

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	2
7	1
8	2
9	3
10	2
11	3
12	3
13	2
14	5
15	3
16	1
17	4
18	4
19	3
20	5
21	5
22	2
23	3
24	4
25	4
26	5
27	5
28	3
29	6
30	6
31	1
32	3
33	5
34	6
35	7
36	5
37	2
38	5
39	6
40	3
41	6
42	6
43	3
44	8
45	9
46	2
47	3
48	4
49	6
50	8
51	6
52	3
53	6
54	11
55	5
56	6
57	5
58	2
59	7
60	7
61	2
62	9
63	5
64	3
65	11
66	6
67	3
68	6
69	11
70	6
71	5
72	5
73	2
74	9
75	9
76	6
77	11
78	6
79	3
80	7
81	7
82	2
83	7
84	12
85	6
86	5
87	7
88	3
89	10
90	16
91	6
92	6
93	5
94	6
95	6
96	3
97	4
98	12
99	12
100	5
101	6
102	6
103	3
104	12

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

cp's OEIS Frontend

A333529 Number of triples [n,k,m] with n <= k <= m satisfying T_n + T_k = T_m, where T_i = i*(i+1)/2 are the triangular numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	2
7	1
8	2
9	3
10	2
11	3
12	3
13	2
14	5
15	3
16	1
17	4
18	4
19	3
20	5
21	5
22	2
23	3
24	4
25	4
26	5
27	5
28	3
29	6
30	6
31	1
32	3
33	5
34	6
35	7
36	5
37	2
38	5
39	6
40	3
41	6
42	6
43	3
44	8
45	9
46	2
47	3
48	4
49	6
50	8
51	6
52	3
53	6
54	11
55	5
56	6
57	5
58	2
59	7
60	7
61	2
62	9
63	5
64	3
65	11
66	6
67	3
68	6
69	11
70	6
71	5
72	5
73	2
74	9
75	9
76	6
77	11
78	6
79	3
80	7
81	7
82	2
83	7
84	12
85	6
86	5
87	7
88	3
89	10
90	16
91	6
92	6
93	5
94	6
95	6
96	3
97	4
98	12
99	12
100	5
101	6
102	6
103	3
104	12

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	2
7	1
8	2
9	3
10	2
11	3
12	3
13	2
14	5
15	3
16	1
17	4
18	4
19	3
20	5
21	5
22	2
23	3
24	4
25	4
26	5
27	5
28	3
29	6
30	6
31	1
32	3
33	5
34	6
35	7
36	5
37	2
38	5
39	6
40	3
41	6
42	6
43	3
44	8
45	9
46	2
47	3
48	4
49	6
50	8
51	6
52	3
53	6
54	11
55	5
56	6
57	5
58	2
59	7
60	7
61	2
62	9
63	5
64	3
65	11
66	6
67	3
68	6
69	11
70	6
71	5
72	5
73	2
74	9
75	9
76	6
77	11
78	6
79	3
80	7
81	7
82	2
83	7
84	12
85	6
86	5
87	7
88	3
89	10
90	16
91	6
92	6
93	5
94	6
95	6
96	3
97	4
98	12
99	12
100	5
101	6
102	6
103	3
104	12

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	2
7	1
8	2
9	3
10	2
11	3
12	3
13	2
14	5
15	3
16	1
17	4
18	4
19	3
20	5
21	5
22	2
23	3
24	4
25	4
26	5
27	5
28	3
29	6
30	6
31	1
32	3
33	5
34	6
35	7
36	5
37	2
38	5
39	6
40	3
41	6
42	6
43	3
44	8
45	9
46	2
47	3
48	4
49	6
50	8
51	6
52	3
53	6
54	11
55	5
56	6
57	5
58	2
59	7
60	7
61	2
62	9
63	5
64	3
65	11
66	6
67	3
68	6
69	11
70	6
71	5
72	5
73	2
74	9
75	9
76	6
77	11
78	6
79	3
80	7
81	7
82	2
83	7
84	12
85	6
86	5
87	7
88	3
89	10
90	16
91	6
92	6
93	5
94	6
95	6
96	3
97	4
98	12
99	12
100	5
101	6
102	6
103	3
104	12