A121895 - cp's OEIS frontend

A121895 Number of partitions of n into 4 summands a>=b>=c>=d>0 with integer a/b, b/c and c/d.

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

[0, 0, 0, 1, 1, 2, 2, 4, 2, 5, 4, 6, 4, 7, 5, 10, 5, 8, 6, 11, 8, 13, 6, 12, 7, 13, 9, 15, 8, 16, 10, 17, 10, 14, 10, 20, 11, 14, 10, 23, 10, 22, 12, 21, 15, 20, 8, 21, 12, 23, 18, 24, 11, 20, 15, 30, 18, 21, 8, 28, 14, 21, 18, 32, 16, 34, 16, 22, 15, 28, 14, 33, 14, 22, 20, 31, 18, 32, 15]

cp's OEIS Frontend

A121895 Number of partitions of n into 4 summands a>=b>=c>=d>0 with integer a/b, b/c and c/d.

Table of values

List of values

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

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

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