A180252 - cp's OEIS frontend

A180252 Numbers where all prime divisors are of the form k^2+1.

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	16
8	17
9	20
10	25
11	32
12	34
13	37
14	40
15	50
16	64
17	68
18	74
19	80
20	85
21	100
22	101
23	125
24	128
25	136
26	148
27	160
28	170
29	185
30	197
31	200
32	202
33	250
34	256
35	257
36	272
37	289
38	296
39	320
40	340
41	370
42	394
43	400
44	401
45	404
46	425
47	500
48	505
49	512
50	514

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 37, 40, 50, 64, 68, 74, 80, 85, 100, 101, 125, 128, 136, 148, 160, 170, 185, 197, 200, 202, 250, 256, 257, 272, 289, 296, 320, 340, 370, 394, 400, 401, 404, 425, 500, 505, 512, 514]

cp's OEIS Frontend

A180252 Numbers where all prime divisors are of the form k^2+1.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	16
8	17
9	20
10	25
11	32
12	34
13	37
14	40
15	50
16	64
17	68
18	74
19	80
20	85
21	100
22	101
23	125
24	128
25	136
26	148
27	160
28	170
29	185
30	197
31	200
32	202
33	250
34	256
35	257
36	272
37	289
38	296
39	320
40	340
41	370
42	394
43	400
44	401
45	404
46	425
47	500
48	505
49	512
50	514

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	16
8	17
9	20
10	25
11	32
12	34
13	37
14	40
15	50
16	64
17	68
18	74
19	80
20	85
21	100
22	101
23	125
24	128
25	136
26	148
27	160
28	170
29	185
30	197
31	200
32	202
33	250
34	256
35	257
36	272
37	289
38	296
39	320
40	340
41	370
42	394
43	400
44	401
45	404
46	425
47	500
48	505
49	512
50	514

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	16
8	17
9	20
10	25
11	32
12	34
13	37
14	40
15	50
16	64
17	68
18	74
19	80
20	85
21	100
22	101
23	125
24	128
25	136
26	148
27	160
28	170
29	185
30	197
31	200
32	202
33	250
34	256
35	257
36	272
37	289
38	296
39	320
40	340
41	370
42	394
43	400
44	401
45	404
46	425
47	500
48	505
49	512
50	514