A342754 - cp's OEIS frontend

A342754 Irregular triangle read by rows: T(n, k) is the number i of iterations that every scytale of length n and k > 1 sides must process its own ciphertext before the initial plaintext returns, where k | n, k > 1 and (n-1) | (k^i-1).

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

[2, 4, 4, 3, 3, 2, 6, 6, 10, 5, 5, 10, 12, 12, 6, 6, 4, 2, 4, 8, 16, 16, 8, 18, 9, 9, 18, 4, 4, 6, 6, 11, 11, 11, 11, 11, 11, 2, 20, 20, 3, 3, 18, 9, 9, 18, 28, 28, 14, 14, 28, 28, 5, 5, 5, 5, 8, 8, 10, 10, 16, 16, 12, 12, 6, 2, 6, 12, 12, 36, 36, 18, 18, 12, 6, 4, 4, 6, 12]

cp's OEIS Frontend

A342754 Irregular triangle read by rows: T(n, k) is the number i of iterations that every scytale of length n and k > 1 sides must process its own ciphertext before the initial plaintext returns, where k | n, k > 1 and (n-1) | (k^i-1).

Table of values

List of values

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

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

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