A340949 - cp's OEIS frontend

A340949 Number of ways to write n as an ordered sum of 4 nonzero triangular numbers.

n	a(n)
4	1
5	0
6	4
7	0
8	6
9	4
10	4
11	12
12	1
13	16
14	6
15	16
16	12
17	12
18	22
19	8
20	36
21	4
22	30
23	24
24	21
25	36
26	18
27	36
28	28
29	48
30	16
31	44
32	36
33	44
34	48
35	36
36	46
37	40
38	72
39	20
40	73
41	48
42	54
43	72
44	42
45	68
46	56
47	84
48	50
49	72
50	78
51	56
52	84
53	84
54	62
55	112
56	60
57	60
58	110
59	84
60	97
61	72
62	120
63	76
64	116
65	84
66	72
67	144
68	102
69	104
70	96
71	108
72	102
73	156
74	102
75	92

[1, 0, 4, 0, 6, 4, 4, 12, 1, 16, 6, 16, 12, 12, 22, 8, 36, 4, 30, 24, 21, 36, 18, 36, 28, 48, 16, 44, 36, 44, 48, 36, 46, 40, 72, 20, 73, 48, 54, 72, 42, 68, 56, 84, 50, 72, 78, 56, 84, 84, 62, 112, 60, 60, 110, 84, 97, 72, 120, 76, 116, 84, 72, 144, 102, 104, 96, 108, 102, 156, 102, 92]

cp's OEIS Frontend

A340949 Number of ways to write n as an ordered sum of 4 nonzero triangular numbers.

Table of values

List of values

n	a(n)
4	1
5	0
6	4
7	0
8	6
9	4
10	4
11	12
12	1
13	16
14	6
15	16
16	12
17	12
18	22
19	8
20	36
21	4
22	30
23	24
24	21
25	36
26	18
27	36
28	28
29	48
30	16
31	44
32	36
33	44
34	48
35	36
36	46
37	40
38	72
39	20
40	73
41	48
42	54
43	72
44	42
45	68
46	56
47	84
48	50
49	72
50	78
51	56
52	84
53	84
54	62
55	112
56	60
57	60
58	110
59	84
60	97
61	72
62	120
63	76
64	116
65	84
66	72
67	144
68	102
69	104
70	96
71	108
72	102
73	156
74	102
75	92

n	a(n)
4	1
5	0
6	4
7	0
8	6
9	4
10	4
11	12
12	1
13	16
14	6
15	16
16	12
17	12
18	22
19	8
20	36
21	4
22	30
23	24
24	21
25	36
26	18
27	36
28	28
29	48
30	16
31	44
32	36
33	44
34	48
35	36
36	46
37	40
38	72
39	20
40	73
41	48
42	54
43	72
44	42
45	68
46	56
47	84
48	50
49	72
50	78
51	56
52	84
53	84
54	62
55	112
56	60
57	60
58	110
59	84
60	97
61	72
62	120
63	76
64	116
65	84
66	72
67	144
68	102
69	104
70	96
71	108
72	102
73	156
74	102
75	92

n	a(n)
4	1
5	0
6	4
7	0
8	6
9	4
10	4
11	12
12	1
13	16
14	6
15	16
16	12
17	12
18	22
19	8
20	36
21	4
22	30
23	24
24	21
25	36
26	18
27	36
28	28
29	48
30	16
31	44
32	36
33	44
34	48
35	36
36	46
37	40
38	72
39	20
40	73
41	48
42	54
43	72
44	42
45	68
46	56
47	84
48	50
49	72
50	78
51	56
52	84
53	84
54	62
55	112
56	60
57	60
58	110
59	84
60	97
61	72
62	120
63	76
64	116
65	84
66	72
67	144
68	102
69	104
70	96
71	108
72	102
73	156
74	102
75	92