A090088 - cp's OEIS frontend

A090088 Smallest even pseudoprimes to odd base=2n-1, not necessarily exceeding n. See also A007535 and A090086, A090087.

n	a(n)
1	4
2	286
3	4
4	6
5	4
6	10
7	4
8	14
9	4
10	6
11	4
12	22
13	4
14	26
15	4
16	6
17	4
18	34
19	4
20	38
21	4
22	6
23	4
24	46
25	4
26	10
27	4
28	6
29	4
30	58
31	4
32	62
33	4
34	6
35	4
36	10
37	4
38	74
39	4
40	6
41	4
42	82
43	4
44	86
45	4
46	6
47	4
48	94
49	4
50	14
51	4
52	6
53	4
54	106
55	4
56	10
57	4
58	6
59	4
60	118
61	4
62	122
63	4
64	6
65	4
66	10
67	4
68	134
69	4
70	6
71	4
72	142
73	4
74	146
75	4
76	6
77	4
78	14
79	4
80	158
81	4
82	6
83	4
84	166
85	4
86	10

[4, 286, 4, 6, 4, 10, 4, 14, 4, 6, 4, 22, 4, 26, 4, 6, 4, 34, 4, 38, 4, 6, 4, 46, 4, 10, 4, 6, 4, 58, 4, 62, 4, 6, 4, 10, 4, 74, 4, 6, 4, 82, 4, 86, 4, 6, 4, 94, 4, 14, 4, 6, 4, 106, 4, 10, 4, 6, 4, 118, 4, 122, 4, 6, 4, 10, 4, 134, 4, 6, 4, 142, 4, 146, 4, 6, 4, 14, 4, 158, 4, 6, 4, 166, 4, 10]

cp's OEIS Frontend

A090088 Smallest even pseudoprimes to odd base=2n-1, not necessarily exceeding n. See also A007535 and A090086, A090087.

Table of values

List of values

n	a(n)
1	4
2	286
3	4
4	6
5	4
6	10
7	4
8	14
9	4
10	6
11	4
12	22
13	4
14	26
15	4
16	6
17	4
18	34
19	4
20	38
21	4
22	6
23	4
24	46
25	4
26	10
27	4
28	6
29	4
30	58
31	4
32	62
33	4
34	6
35	4
36	10
37	4
38	74
39	4
40	6
41	4
42	82
43	4
44	86
45	4
46	6
47	4
48	94
49	4
50	14
51	4
52	6
53	4
54	106
55	4
56	10
57	4
58	6
59	4
60	118
61	4
62	122
63	4
64	6
65	4
66	10
67	4
68	134
69	4
70	6
71	4
72	142
73	4
74	146
75	4
76	6
77	4
78	14
79	4
80	158
81	4
82	6
83	4
84	166
85	4
86	10

n	a(n)
1	4
2	286
3	4
4	6
5	4
6	10
7	4
8	14
9	4
10	6
11	4
12	22
13	4
14	26
15	4
16	6
17	4
18	34
19	4
20	38
21	4
22	6
23	4
24	46
25	4
26	10
27	4
28	6
29	4
30	58
31	4
32	62
33	4
34	6
35	4
36	10
37	4
38	74
39	4
40	6
41	4
42	82
43	4
44	86
45	4
46	6
47	4
48	94
49	4
50	14
51	4
52	6
53	4
54	106
55	4
56	10
57	4
58	6
59	4
60	118
61	4
62	122
63	4
64	6
65	4
66	10
67	4
68	134
69	4
70	6
71	4
72	142
73	4
74	146
75	4
76	6
77	4
78	14
79	4
80	158
81	4
82	6
83	4
84	166
85	4
86	10

n	a(n)
1	4
2	286
3	4
4	6
5	4
6	10
7	4
8	14
9	4
10	6
11	4
12	22
13	4
14	26
15	4
16	6
17	4
18	34
19	4
20	38
21	4
22	6
23	4
24	46
25	4
26	10
27	4
28	6
29	4
30	58
31	4
32	62
33	4
34	6
35	4
36	10
37	4
38	74
39	4
40	6
41	4
42	82
43	4
44	86
45	4
46	6
47	4
48	94
49	4
50	14
51	4
52	6
53	4
54	106
55	4
56	10
57	4
58	6
59	4
60	118
61	4
62	122
63	4
64	6
65	4
66	10
67	4
68	134
69	4
70	6
71	4
72	142
73	4
74	146
75	4
76	6
77	4
78	14
79	4
80	158
81	4
82	6
83	4
84	166
85	4
86	10