A353602 - cp's OEIS frontend

A353602 Square array read by downward antidiagonals: A(n, k) = k-th Wieferich base of n, i.e., k-th b > 1 such that b^(n-1) == 1 (mod n^2).

n	a(n)
2	5
3	9
4	8
5	13
6	10
7	17
8	17
9	17
10	33
11	7
12	21
13	19
14	49
15	18
16	37
17	25
18	26
19	65
20	24
21	73
22	18
23	29
24	28
25	81
26	26
27	109
28	19
29	65
30	33
31	35
32	97
33	32
34	145
35	30
36	129
37	80
38	37
39	37
40	113
41	43
42	181
43	31
44	193
45	82
46	101
47	41
48	44
49	129
50	49
51	217
52	48
53	257
54	161
55	201
56	3
57	45
58	46
59	145
60	51
61	253
62	50
63	321
64	163

[5, 9, 8, 13, 10, 17, 17, 17, 33, 7, 21, 19, 49, 18, 37, 25, 26, 65, 24, 73, 18, 29, 28, 81, 26, 109, 19, 65, 33, 35, 97, 32, 145, 30, 129, 80, 37, 37, 113, 43, 181, 31, 193, 82, 101, 41, 44, 129, 49, 217, 48, 257, 161, 201, 3, 45, 46, 145, 51, 253, 50, 321, 163]

cp's OEIS Frontend

A353602 Square array read by downward antidiagonals: A(n, k) = k-th Wieferich base of n, i.e., k-th b > 1 such that b^(n-1) == 1 (mod n^2).

Table of values

List of values

n	a(n)
2	5
3	9
4	8
5	13
6	10
7	17
8	17
9	17
10	33
11	7
12	21
13	19
14	49
15	18
16	37
17	25
18	26
19	65
20	24
21	73
22	18
23	29
24	28
25	81
26	26
27	109
28	19
29	65
30	33
31	35
32	97
33	32
34	145
35	30
36	129
37	80
38	37
39	37
40	113
41	43
42	181
43	31
44	193
45	82
46	101
47	41
48	44
49	129
50	49
51	217
52	48
53	257
54	161
55	201
56	3
57	45
58	46
59	145
60	51
61	253
62	50
63	321
64	163

n	a(n)
2	5
3	9
4	8
5	13
6	10
7	17
8	17
9	17
10	33
11	7
12	21
13	19
14	49
15	18
16	37
17	25
18	26
19	65
20	24
21	73
22	18
23	29
24	28
25	81
26	26
27	109
28	19
29	65
30	33
31	35
32	97
33	32
34	145
35	30
36	129
37	80
38	37
39	37
40	113
41	43
42	181
43	31
44	193
45	82
46	101
47	41
48	44
49	129
50	49
51	217
52	48
53	257
54	161
55	201
56	3
57	45
58	46
59	145
60	51
61	253
62	50
63	321
64	163

n	a(n)
2	5
3	9
4	8
5	13
6	10
7	17
8	17
9	17
10	33
11	7
12	21
13	19
14	49
15	18
16	37
17	25
18	26
19	65
20	24
21	73
22	18
23	29
24	28
25	81
26	26
27	109
28	19
29	65
30	33
31	35
32	97
33	32
34	145
35	30
36	129
37	80
38	37
39	37
40	113
41	43
42	181
43	31
44	193
45	82
46	101
47	41
48	44
49	129
50	49
51	217
52	48
53	257
54	161
55	201
56	3
57	45
58	46
59	145
60	51
61	253
62	50
63	321
64	163