A319350 - cp's OEIS frontend

A319350 Filter sequence which records the number of cyclotomic cosets of 2 mod p for odd primes p, and for any other number assigns a unique number.

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

[1, 2, 3, 4, 3, 5, 6, 7, 8, 9, 3, 10, 3, 11, 12, 13, 6, 14, 3, 15, 16, 17, 6, 18, 19, 20, 21, 22, 3, 23, 24, 25, 26, 27, 28, 29, 3, 30, 31, 32, 6, 33, 34, 35, 36, 37, 6, 38, 39, 40, 41, 42, 3, 43, 44, 45, 46, 47, 3, 48, 3, 49, 50, 51, 52, 53, 3, 54, 55, 56, 6, 57, 58, 59, 60, 61, 62, 63, 6, 64, 65, 66, 3, 67, 68, 69, 70, 71, 58, 72, 73, 74, 75, 76, 77, 78, 6, 79, 80, 81, 3, 82, 6]

cp's OEIS Frontend

A319350 Filter sequence which records the number of cyclotomic cosets of 2 mod p for odd primes p, and for any other number assigns a unique number.

Table of values

List of values

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

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

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