A094180 - cp's OEIS frontend

A094180 Numbers k such that 4k-1 is divisible only by primes of form 4m-1 (i.e., by the Gaussian primes A002145).

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	11
9	12
10	15
11	16
12	17
13	18
14	20
15	21
16	25
17	26
18	27
19	32
20	33
21	35
22	37
23	38
24	41
25	42
26	43
27	45
28	48
29	50
30	52
31	53
32	56
33	57
34	58
35	60
36	61
37	63
38	66
39	68
40	70
41	71
42	77
43	78
44	83
45	86
46	87
47	90
48	91
49	92
50	95
51	96
52	97
53	100
54	105
55	106
56	108
57	110
58	111
59	116
60	117
61	120
62	121
63	122
64	123
65	125
66	126
67	131

[1, 2, 3, 5, 6, 7, 8, 11, 12, 15, 16, 17, 18, 20, 21, 25, 26, 27, 32, 33, 35, 37, 38, 41, 42, 43, 45, 48, 50, 52, 53, 56, 57, 58, 60, 61, 63, 66, 68, 70, 71, 77, 78, 83, 86, 87, 90, 91, 92, 95, 96, 97, 100, 105, 106, 108, 110, 111, 116, 117, 120, 121, 122, 123, 125, 126, 131]

cp's OEIS Frontend

A094180 Numbers k such that 4k-1 is divisible only by primes of form 4m-1 (i.e., by the Gaussian primes A002145).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	11
9	12
10	15
11	16
12	17
13	18
14	20
15	21
16	25
17	26
18	27
19	32
20	33
21	35
22	37
23	38
24	41
25	42
26	43
27	45
28	48
29	50
30	52
31	53
32	56
33	57
34	58
35	60
36	61
37	63
38	66
39	68
40	70
41	71
42	77
43	78
44	83
45	86
46	87
47	90
48	91
49	92
50	95
51	96
52	97
53	100
54	105
55	106
56	108
57	110
58	111
59	116
60	117
61	120
62	121
63	122
64	123
65	125
66	126
67	131

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	11
9	12
10	15
11	16
12	17
13	18
14	20
15	21
16	25
17	26
18	27
19	32
20	33
21	35
22	37
23	38
24	41
25	42
26	43
27	45
28	48
29	50
30	52
31	53
32	56
33	57
34	58
35	60
36	61
37	63
38	66
39	68
40	70
41	71
42	77
43	78
44	83
45	86
46	87
47	90
48	91
49	92
50	95
51	96
52	97
53	100
54	105
55	106
56	108
57	110
58	111
59	116
60	117
61	120
62	121
63	122
64	123
65	125
66	126
67	131

cp's OEIS Frontend

A094180 Numbers k such that 4*k-1 is divisible only by primes of form 4*m-1 (i.e., by the Gaussian primes A002145).

Table of values

List of values

A094180 Numbers k such that 4k-1 is divisible only by primes of form 4m-1 (i.e., by the Gaussian primes A002145).

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	11
9	12
10	15
11	16
12	17
13	18
14	20
15	21
16	25
17	26
18	27
19	32
20	33
21	35
22	37
23	38
24	41
25	42
26	43
27	45
28	48
29	50
30	52
31	53
32	56
33	57
34	58
35	60
36	61
37	63
38	66
39	68
40	70
41	71
42	77
43	78
44	83
45	86
46	87
47	90
48	91
49	92
50	95
51	96
52	97
53	100
54	105
55	106
56	108
57	110
58	111
59	116
60	117
61	120
62	121
63	122
64	123
65	125
66	126
67	131