A179968 - cp's OEIS frontend

A179968 'AT(n,k)' triangle read by rows. AT(n,k) is the number of aperiodic k-compositions of n.

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	4
18	9
19	8
20	5
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	6
31	21
32	32
33	35
34	18
35	7
36	0
37	1
38	8
39	27
40	56
41	70
42	54
43	28
44	8
45	0
46	1
47	8
48	36
49	80
50	125
51	120
52	84
53	32
54	9
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0

[1, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 4, 6, 4, 0, 1, 4, 9, 8, 5, 0, 1, 6, 15, 20, 15, 6, 0, 1, 6, 21, 32, 35, 18, 7, 0, 1, 8, 27, 56, 70, 54, 28, 8, 0, 1, 8, 36, 80, 125, 120, 84, 32, 9, 0, 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 0]

cp's OEIS Frontend

A179968 'AT(n,k)' triangle read by rows. AT(n,k) is the number of aperiodic k-compositions of n.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	4
18	9
19	8
20	5
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	6
31	21
32	32
33	35
34	18
35	7
36	0
37	1
38	8
39	27
40	56
41	70
42	54
43	28
44	8
45	0
46	1
47	8
48	36
49	80
50	125
51	120
52	84
53	32
54	9
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	4
18	9
19	8
20	5
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	6
31	21
32	32
33	35
34	18
35	7
36	0
37	1
38	8
39	27
40	56
41	70
42	54
43	28
44	8
45	0
46	1
47	8
48	36
49	80
50	125
51	120
52	84
53	32
54	9
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	4
18	9
19	8
20	5
21	0
22	1
23	6
24	15
25	20
26	15
27	6
28	0
29	1
30	6
31	21
32	32
33	35
34	18
35	7
36	0
37	1
38	8
39	27
40	56
41	70
42	54
43	28
44	8
45	0
46	1
47	8
48	36
49	80
50	125
51	120
52	84
53	32
54	9
55	0
56	1
57	10
58	45
59	120
60	210
61	252
62	210
63	120
64	45
65	10
66	0