A180279 - cp's OEIS frontend

A180279 Triangle read by rows: AR(n,k) is the number of aperiodic k-reverses of n (n >= 1, 1 <= k <= 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	3
19	8
20	5
21	0
22	1
23	6
24	9
25	12
26	15
27	6
28	0
29	1
30	6
31	9
32	16
33	15
34	18
35	7
36	0
37	1
38	8
39	9
40	24
41	30
42	18
43	28
44	8
45	0
46	1
47	8
48	12
49	32
50	25
51	48
52	28
53	32
54	9
55	0
56	1
57	10
58	15
59	40
60	50
61	60
62	70
63	40
64	45
65	10
66	0
67	1
68	10
69	12
70	48
71	50
72	102
73	70
74	96
75	36
76	50
77	11
78	0

[1, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 4, 6, 4, 0, 1, 4, 3, 8, 5, 0, 1, 6, 9, 12, 15, 6, 0, 1, 6, 9, 16, 15, 18, 7, 0, 1, 8, 9, 24, 30, 18, 28, 8, 0, 1, 8, 12, 32, 25, 48, 28, 32, 9, 0, 1, 10, 15, 40, 50, 60, 70, 40, 45, 10, 0, 1, 10, 12, 48, 50, 102, 70, 96, 36, 50, 11, 0]

cp's OEIS Frontend

A180279 Triangle read by rows: AR(n,k) is the number of aperiodic k-reverses of n (n >= 1, 1 <= k <= 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	3
19	8
20	5
21	0
22	1
23	6
24	9
25	12
26	15
27	6
28	0
29	1
30	6
31	9
32	16
33	15
34	18
35	7
36	0
37	1
38	8
39	9
40	24
41	30
42	18
43	28
44	8
45	0
46	1
47	8
48	12
49	32
50	25
51	48
52	28
53	32
54	9
55	0
56	1
57	10
58	15
59	40
60	50
61	60
62	70
63	40
64	45
65	10
66	0
67	1
68	10
69	12
70	48
71	50
72	102
73	70
74	96
75	36
76	50
77	11
78	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	3
19	8
20	5
21	0
22	1
23	6
24	9
25	12
26	15
27	6
28	0
29	1
30	6
31	9
32	16
33	15
34	18
35	7
36	0
37	1
38	8
39	9
40	24
41	30
42	18
43	28
44	8
45	0
46	1
47	8
48	12
49	32
50	25
51	48
52	28
53	32
54	9
55	0
56	1
57	10
58	15
59	40
60	50
61	60
62	70
63	40
64	45
65	10
66	0
67	1
68	10
69	12
70	48
71	50
72	102
73	70
74	96
75	36
76	50
77	11
78	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	3
19	8
20	5
21	0
22	1
23	6
24	9
25	12
26	15
27	6
28	0
29	1
30	6
31	9
32	16
33	15
34	18
35	7
36	0
37	1
38	8
39	9
40	24
41	30
42	18
43	28
44	8
45	0
46	1
47	8
48	12
49	32
50	25
51	48
52	28
53	32
54	9
55	0
56	1
57	10
58	15
59	40
60	50
61	60
62	70
63	40
64	45
65	10
66	0
67	1
68	10
69	12
70	48
71	50
72	102
73	70
74	96
75	36
76	50
77	11
78	0