A063993 - cp's OEIS frontend

A063993 Number of ways of writing n as an unordered sum of exactly 3 nonzero triangular numbers.

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

[0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 2, 1, 1, 1, 1, 2, 1, 2, 0, 2, 2, 2, 1, 1, 2, 2, 2, 0, 3, 2, 2, 2, 2, 2, 1, 3, 1, 2, 3, 2, 2, 2, 2, 3, 2, 2, 3, 3, 1, 2, 5, 1, 2, 1, 2, 5, 3, 3, 1, 4, 2, 3, 2, 2, 4, 4, 2, 1, 4, 3, 3, 3, 2, 4, 3, 3, 3, 4, 2, 1, 6, 1, 5, 3, 3, 5, 2, 2, 2, 5, 2, 5, 4, 2, 4, 5, 3, 1]

cp's OEIS Frontend

A063993 Number of ways of writing n as an unordered sum of exactly 3 nonzero triangular numbers.

Table of values

List of values

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

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

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