A277013 - cp's OEIS frontend

A277013 a(n) = number of irreducible polynomial factors (counted with multiplicity) in the n-th Stern polynomial B(n,t).

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

[0, 1, 1, 2, 1, 2, 1, 3, 2, 2, 1, 3, 1, 2, 2, 4, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 3, 3, 1, 3, 1, 5, 2, 2, 2, 4, 1, 2, 2, 4, 1, 3, 1, 3, 3, 2, 1, 5, 2, 2, 2, 3, 1, 4, 1, 4, 2, 2, 1, 4, 1, 2, 3, 6, 1, 3, 1, 3, 2, 3, 1, 5, 1, 2, 3, 3, 1, 3, 1, 5, 2, 2, 1, 4, 2, 2, 2, 4, 1, 4, 1, 3, 2, 2, 1, 6, 1, 3, 3, 3, 1, 3, 1, 4, 3, 2, 1, 5, 1, 2, 2, 5, 1, 3, 1, 3, 2, 2, 2, 5]

cp's OEIS Frontend

A277013 a(n) = number of irreducible polynomial factors (counted with multiplicity) in the n-th Stern polynomial B(n,t).

Table of values

List of values

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

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

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