A379352 - cp's OEIS frontend

A379352 a(n) is the smallest nonnegative integer k such the greatest prime factor of k^2 + 2 is A033203(n), the n-th prime not congruent to 5 or 7 mod 8.

n	a(n)
1	0
2	1
3	3
4	7
5	6
6	11
7	16
8	23
9	20
10	12
11	9
12	40
13	17
14	31
15	26
16	28
17	51
18	50
19	18
20	78
21	34
22	93
23	15
24	109
25	38
26	91
27	68
28	29
29	127
30	108
31	130
32	75
33	141
34	107
35	46
36	120
37	143
38	35
39	96
40	69
41	21
42	214
43	37
44	126
45	94
46	67
47	163
48	56
49	190
50	261
51	216
52	153
53	239
54	207
55	260
56	104
57	43
58	288
59	62
60	206
61	77
62	262
63	64
64	151
65	346

[0, 1, 3, 7, 6, 11, 16, 23, 20, 12, 9, 40, 17, 31, 26, 28, 51, 50, 18, 78, 34, 93, 15, 109, 38, 91, 68, 29, 127, 108, 130, 75, 141, 107, 46, 120, 143, 35, 96, 69, 21, 214, 37, 126, 94, 67, 163, 56, 190, 261, 216, 153, 239, 207, 260, 104, 43, 288, 62, 206, 77, 262, 64, 151, 346]

cp's OEIS Frontend

A379352 a(n) is the smallest nonnegative integer k such the greatest prime factor of k^2 + 2 is A033203(n), the n-th prime not congruent to 5 or 7 mod 8.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	7
5	6
6	11
7	16
8	23
9	20
10	12
11	9
12	40
13	17
14	31
15	26
16	28
17	51
18	50
19	18
20	78
21	34
22	93
23	15
24	109
25	38
26	91
27	68
28	29
29	127
30	108
31	130
32	75
33	141
34	107
35	46
36	120
37	143
38	35
39	96
40	69
41	21
42	214
43	37
44	126
45	94
46	67
47	163
48	56
49	190
50	261
51	216
52	153
53	239
54	207
55	260
56	104
57	43
58	288
59	62
60	206
61	77
62	262
63	64
64	151
65	346

n	a(n)
1	0
2	1
3	3
4	7
5	6
6	11
7	16
8	23
9	20
10	12
11	9
12	40
13	17
14	31
15	26
16	28
17	51
18	50
19	18
20	78
21	34
22	93
23	15
24	109
25	38
26	91
27	68
28	29
29	127
30	108
31	130
32	75
33	141
34	107
35	46
36	120
37	143
38	35
39	96
40	69
41	21
42	214
43	37
44	126
45	94
46	67
47	163
48	56
49	190
50	261
51	216
52	153
53	239
54	207
55	260
56	104
57	43
58	288
59	62
60	206
61	77
62	262
63	64
64	151
65	346

n	a(n)
1	0
2	1
3	3
4	7
5	6
6	11
7	16
8	23
9	20
10	12
11	9
12	40
13	17
14	31
15	26
16	28
17	51
18	50
19	18
20	78
21	34
22	93
23	15
24	109
25	38
26	91
27	68
28	29
29	127
30	108
31	130
32	75
33	141
34	107
35	46
36	120
37	143
38	35
39	96
40	69
41	21
42	214
43	37
44	126
45	94
46	67
47	163
48	56
49	190
50	261
51	216
52	153
53	239
54	207
55	260
56	104
57	43
58	288
59	62
60	206
61	77
62	262
63	64
64	151
65	346