A090798 - cp's OEIS frontend

A090798 Irregular primes in the ratio numerator(Bernoulli(2n)/(2n)) / numerator(Bernoulli(2n)/(2n(2n-r))) when these numerators are different and n is a minimum for some integer r. Duplication indicates irregularity index > 1.

n	a(n)
1	37
2	59
3	67
4	101
5	103
6	131
7	149
8	157
9	157
10	233
11	257
12	263
13	271
14	283
15	293
16	307
17	311
18	347
19	353
20	353
21	379
22	379
23	389
24	401
25	409
26	421
27	433
28	461
29	463
30	467
31	467
32	491
33	491
34	491
35	523
36	541
37	547
38	547
39	557
40	577
41	587
42	587
43	593
44	607
45	613
46	617
47	617
48	617
49	619
50	631
51	631
52	647

[37, 59, 67, 101, 103, 131, 149, 157, 157, 233, 257, 263, 271, 283, 293, 307, 311, 347, 353, 353, 379, 379, 389, 401, 409, 421, 433, 461, 463, 467, 467, 491, 491, 491, 523, 541, 547, 547, 557, 577, 587, 587, 593, 607, 613, 617, 617, 617, 619, 631, 631, 647]

cp's OEIS Frontend

A090798 Irregular primes in the ratio numerator(Bernoulli(2n)/(2n)) / numerator(Bernoulli(2n)/(2n(2n-r))) when these numerators are different and n is a minimum for some integer r. Duplication indicates irregularity index > 1.

Table of values

List of values

n	a(n)
1	37
2	59
3	67
4	101
5	103
6	131
7	149
8	157
9	157
10	233
11	257
12	263
13	271
14	283
15	293
16	307
17	311
18	347
19	353
20	353
21	379
22	379
23	389
24	401
25	409
26	421
27	433
28	461
29	463
30	467
31	467
32	491
33	491
34	491
35	523
36	541
37	547
38	547
39	557
40	577
41	587
42	587
43	593
44	607
45	613
46	617
47	617
48	617
49	619
50	631
51	631
52	647

n	a(n)
1	37
2	59
3	67
4	101
5	103
6	131
7	149
8	157
9	157
10	233
11	257
12	263
13	271
14	283
15	293
16	307
17	311
18	347
19	353
20	353
21	379
22	379
23	389
24	401
25	409
26	421
27	433
28	461
29	463
30	467
31	467
32	491
33	491
34	491
35	523
36	541
37	547
38	547
39	557
40	577
41	587
42	587
43	593
44	607
45	613
46	617
47	617
48	617
49	619
50	631
51	631
52	647

cp's OEIS Frontend

A090798 Irregular primes in the ratio numerator(Bernoulli(2*n)/(2*n)) / numerator(Bernoulli(2*n)/(2*n*(2*n-r))) when these numerators are different and n is a minimum for some integer r. Duplication indicates irregularity index > 1.

Table of values

List of values

A090798 Irregular primes in the ratio numerator(Bernoulli(2n)/(2n)) / numerator(Bernoulli(2n)/(2n(2n-r))) when these numerators are different and n is a minimum for some integer r. Duplication indicates irregularity index > 1.

n	a(n)
1	37
2	59
3	67
4	101
5	103
6	131
7	149
8	157
9	157
10	233
11	257
12	263
13	271
14	283
15	293
16	307
17	311
18	347
19	353
20	353
21	379
22	379
23	389
24	401
25	409
26	421
27	433
28	461
29	463
30	467
31	467
32	491
33	491
34	491
35	523
36	541
37	547
38	547
39	557
40	577
41	587
42	587
43	593
44	607
45	613
46	617
47	617
48	617
49	619
50	631
51	631
52	647