A260720 - cp's OEIS frontend

A260720 a(n) = A091222(A260441(n)): number of irreducible factors (in ring GF(2)[X]) of the binary encoded polynomial obtained after the n-th iteration of A234742, when starting with the initial value 1361.

n	a(n)
0	2
1	4
2	5
3	2
4	6
5	4
6	4
7	8
8	3
9	3
10	4
11	3
12	3
13	3
14	2
15	2
16	3
17	5
18	2
19	4
20	7
21	2
22	5
23	3
24	7
25	3
26	3
27	4
28	4
29	7
30	4
31	6
32	5
33	3
34	2
35	5
36	6
37	4
38	8
39	4
40	4
41	6
42	3
43	4
44	5
45	3
46	3
47	4
48	5
49	6
50	6
51	6
52	3
53	6
54	10
55	6
56	4
57	5
58	6
59	8
60	3
61	3
62	5
63	3
64	8
65	2
66	3
67	4
68	5
69	6
70	5
71	4
72	5
73	5
74	7
75	4
76	5
77	6
78	3
79	5
80	6
81	5
82	6
83	7
84	3
85	8
86	7
87	10
88	7
89	9
90	6
91	5
92	2
93	6
94	5
95	7
96	6
97	8
98	6
99	3
100	10
101	3
102	9
103	8
104	6
105	6
106	5
107	8
108	6
109	7
110	3
111	6
112	8
113	5
114	5
115	5
116	8
117	5
118	6
119	5
120	7

[2, 4, 5, 2, 6, 4, 4, 8, 3, 3, 4, 3, 3, 3, 2, 2, 3, 5, 2, 4, 7, 2, 5, 3, 7, 3, 3, 4, 4, 7, 4, 6, 5, 3, 2, 5, 6, 4, 8, 4, 4, 6, 3, 4, 5, 3, 3, 4, 5, 6, 6, 6, 3, 6, 10, 6, 4, 5, 6, 8, 3, 3, 5, 3, 8, 2, 3, 4, 5, 6, 5, 4, 5, 5, 7, 4, 5, 6, 3, 5, 6, 5, 6, 7, 3, 8, 7, 10, 7, 9, 6, 5, 2, 6, 5, 7, 6, 8, 6, 3, 10, 3, 9, 8, 6, 6, 5, 8, 6, 7, 3, 6, 8, 5, 5, 5, 8, 5, 6, 5, 7]

cp's OEIS Frontend

A260720 a(n) = A091222(A260441(n)): number of irreducible factors (in ring GF(2)[X]) of the binary encoded polynomial obtained after the n-th iteration of A234742, when starting with the initial value 1361.

Table of values

List of values

n	a(n)
0	2
1	4
2	5
3	2
4	6
5	4
6	4
7	8
8	3
9	3
10	4
11	3
12	3
13	3
14	2
15	2
16	3
17	5
18	2
19	4
20	7
21	2
22	5
23	3
24	7
25	3
26	3
27	4
28	4
29	7
30	4
31	6
32	5
33	3
34	2
35	5
36	6
37	4
38	8
39	4
40	4
41	6
42	3
43	4
44	5
45	3
46	3
47	4
48	5
49	6
50	6
51	6
52	3
53	6
54	10
55	6
56	4
57	5
58	6
59	8
60	3
61	3
62	5
63	3
64	8
65	2
66	3
67	4
68	5
69	6
70	5
71	4
72	5
73	5
74	7
75	4
76	5
77	6
78	3
79	5
80	6
81	5
82	6
83	7
84	3
85	8
86	7
87	10
88	7
89	9
90	6
91	5
92	2
93	6
94	5
95	7
96	6
97	8
98	6
99	3
100	10
101	3
102	9
103	8
104	6
105	6
106	5
107	8
108	6
109	7
110	3
111	6
112	8
113	5
114	5
115	5
116	8
117	5
118	6
119	5
120	7

n	a(n)
0	2
1	4
2	5
3	2
4	6
5	4
6	4
7	8
8	3
9	3
10	4
11	3
12	3
13	3
14	2
15	2
16	3
17	5
18	2
19	4
20	7
21	2
22	5
23	3
24	7
25	3
26	3
27	4
28	4
29	7
30	4
31	6
32	5
33	3
34	2
35	5
36	6
37	4
38	8
39	4
40	4
41	6
42	3
43	4
44	5
45	3
46	3
47	4
48	5
49	6
50	6
51	6
52	3
53	6
54	10
55	6
56	4
57	5
58	6
59	8
60	3
61	3
62	5
63	3
64	8
65	2
66	3
67	4
68	5
69	6
70	5
71	4
72	5
73	5
74	7
75	4
76	5
77	6
78	3
79	5
80	6
81	5
82	6
83	7
84	3
85	8
86	7
87	10
88	7
89	9
90	6
91	5
92	2
93	6
94	5
95	7
96	6
97	8
98	6
99	3
100	10
101	3
102	9
103	8
104	6
105	6
106	5
107	8
108	6
109	7
110	3
111	6
112	8
113	5
114	5
115	5
116	8
117	5
118	6
119	5
120	7

n	a(n)
0	2
1	4
2	5
3	2
4	6
5	4
6	4
7	8
8	3
9	3
10	4
11	3
12	3
13	3
14	2
15	2
16	3
17	5
18	2
19	4
20	7
21	2
22	5
23	3
24	7
25	3
26	3
27	4
28	4
29	7
30	4
31	6
32	5
33	3
34	2
35	5
36	6
37	4
38	8
39	4
40	4
41	6
42	3
43	4
44	5
45	3
46	3
47	4
48	5
49	6
50	6
51	6
52	3
53	6
54	10
55	6
56	4
57	5
58	6
59	8
60	3
61	3
62	5
63	3
64	8
65	2
66	3
67	4
68	5
69	6
70	5
71	4
72	5
73	5
74	7
75	4
76	5
77	6
78	3
79	5
80	6
81	5
82	6
83	7
84	3
85	8
86	7
87	10
88	7
89	9
90	6
91	5
92	2
93	6
94	5
95	7
96	6
97	8
98	6
99	3
100	10
101	3
102	9
103	8
104	6
105	6
106	5
107	8
108	6
109	7
110	3
111	6
112	8
113	5
114	5
115	5
116	8
117	5
118	6
119	5
120	7