A129389 - cp's OEIS frontend

A129389 Numbers k such that the mean of 5 consecutive squares starting with k^2 is prime.

n	a(n)
1	1
2	7
3	13
4	19
5	31
6	37
7	43
8	55
9	79
10	97
11	103
12	109
13	115
14	121
15	145
16	169
17	217
18	223
19	235
20	241
21	247
22	253
23	271
24	295
25	301
26	307
27	319
28	343
29	349
30	361
31	367
32	373
33	385
34	415
35	421
36	427
37	439
38	445
39	451
40	475
41	499
42	511
43	547
44	553
45	559
46	571
47	601
48	607
49	649
50	673
51	679
52	697
53	709
54	751

[1, 7, 13, 19, 31, 37, 43, 55, 79, 97, 103, 109, 115, 121, 145, 169, 217, 223, 235, 241, 247, 253, 271, 295, 301, 307, 319, 343, 349, 361, 367, 373, 385, 415, 421, 427, 439, 445, 451, 475, 499, 511, 547, 553, 559, 571, 601, 607, 649, 673, 679, 697, 709, 751]

cp's OEIS Frontend

A129389 Numbers k such that the mean of 5 consecutive squares starting with k^2 is prime.

Table of values

List of values

n	a(n)
1	1
2	7
3	13
4	19
5	31
6	37
7	43
8	55
9	79
10	97
11	103
12	109
13	115
14	121
15	145
16	169
17	217
18	223
19	235
20	241
21	247
22	253
23	271
24	295
25	301
26	307
27	319
28	343
29	349
30	361
31	367
32	373
33	385
34	415
35	421
36	427
37	439
38	445
39	451
40	475
41	499
42	511
43	547
44	553
45	559
46	571
47	601
48	607
49	649
50	673
51	679
52	697
53	709
54	751

n	a(n)
1	1
2	7
3	13
4	19
5	31
6	37
7	43
8	55
9	79
10	97
11	103
12	109
13	115
14	121
15	145
16	169
17	217
18	223
19	235
20	241
21	247
22	253
23	271
24	295
25	301
26	307
27	319
28	343
29	349
30	361
31	367
32	373
33	385
34	415
35	421
36	427
37	439
38	445
39	451
40	475
41	499
42	511
43	547
44	553
45	559
46	571
47	601
48	607
49	649
50	673
51	679
52	697
53	709
54	751

n	a(n)
1	1
2	7
3	13
4	19
5	31
6	37
7	43
8	55
9	79
10	97
11	103
12	109
13	115
14	121
15	145
16	169
17	217
18	223
19	235
20	241
21	247
22	253
23	271
24	295
25	301
26	307
27	319
28	343
29	349
30	361
31	367
32	373
33	385
34	415
35	421
36	427
37	439
38	445
39	451
40	475
41	499
42	511
43	547
44	553
45	559
46	571
47	601
48	607
49	649
50	673
51	679
52	697
53	709
54	751