A283994 - cp's OEIS frontend

A283994 a(1) = 0, and for n > 1, a(n) = position of Stern polynomial B(n,x) among the irreducible/reducible Stern polynomials.

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

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

cp's OEIS Frontend

A283994 a(1) = 0, and for n > 1, a(n) = position of Stern polynomial B(n,x) among the irreducible/reducible Stern polynomials.

Table of values

List of values

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

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

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