A002636 - cp's OEIS frontend

A002636 Number of ways of writing n as an unordered sum of at most 3 nonzero triangular numbers.

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

[1, 1, 1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 3, 2, 1, 2, 3, 2, 2, 2, 1, 4, 3, 2, 2, 2, 2, 3, 3, 1, 4, 4, 2, 2, 3, 2, 3, 4, 2, 3, 3, 2, 4, 3, 2, 4, 4, 2, 4, 4, 1, 4, 5, 1, 2, 3, 4, 6, 4, 3, 2, 5, 2, 3, 3, 3, 6, 5, 2, 2, 5, 3, 5, 4, 2, 4, 5, 3, 4, 5, 2, 4, 6, 2, 6, 3, 3, 6, 3, 2, 3, 7, 3, 6, 6, 2, 4, 6, 3, 2]

cp's OEIS Frontend

A002636 Number of ways of writing n as an unordered sum of at most 3 nonzero triangular numbers.

Table of values

List of values

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

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

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