A086249 - cp's OEIS frontend

A086249 Number of base-2 Fermat pseudoprimes x that have ord(2,x) = n.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	0
20	1
21	1
22	3
23	1
24	2
25	1
26	1
27	0
28	12
29	4
30	3
31	0
32	1
33	1
34	1
35	1
36	12
37	1
38	1
39	4
40	5
41	1
42	9
43	4
44	10
45	8
46	3
47	4
48	25
49	0
50	10
51	11
52	11
53	4
54	1
55	4
56	15
57	4
58	22
59	1
60	57
61	0
62	1
63	4
64	10
65	1
66	24
67	1
68	11
69	1
70	41
71	4
72	86
73	4
74	10
75	25
76	11
77	0
78	21
79	4
80	7
81	4
82	10
83	1
84	52
85	1
86	7
87	10
88	22
89	0
90	26
91	11
92	56
93	1

[0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 3, 1, 2, 1, 1, 0, 12, 4, 3, 0, 1, 1, 1, 1, 12, 1, 1, 4, 5, 1, 9, 4, 10, 8, 3, 4, 25, 0, 10, 11, 11, 4, 1, 4, 15, 4, 22, 1, 57, 0, 1, 4, 10, 1, 24, 1, 11, 1, 41, 4, 86, 4, 10, 25, 11, 0, 21, 4, 7, 4, 10, 1, 52, 1, 7, 10, 22, 0, 26, 11, 56, 1]

cp's OEIS Frontend

A086249 Number of base-2 Fermat pseudoprimes x that have ord(2,x) = n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	0
20	1
21	1
22	3
23	1
24	2
25	1
26	1
27	0
28	12
29	4
30	3
31	0
32	1
33	1
34	1
35	1
36	12
37	1
38	1
39	4
40	5
41	1
42	9
43	4
44	10
45	8
46	3
47	4
48	25
49	0
50	10
51	11
52	11
53	4
54	1
55	4
56	15
57	4
58	22
59	1
60	57
61	0
62	1
63	4
64	10
65	1
66	24
67	1
68	11
69	1
70	41
71	4
72	86
73	4
74	10
75	25
76	11
77	0
78	21
79	4
80	7
81	4
82	10
83	1
84	52
85	1
86	7
87	10
88	22
89	0
90	26
91	11
92	56
93	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	0
20	1
21	1
22	3
23	1
24	2
25	1
26	1
27	0
28	12
29	4
30	3
31	0
32	1
33	1
34	1
35	1
36	12
37	1
38	1
39	4
40	5
41	1
42	9
43	4
44	10
45	8
46	3
47	4
48	25
49	0
50	10
51	11
52	11
53	4
54	1
55	4
56	15
57	4
58	22
59	1
60	57
61	0
62	1
63	4
64	10
65	1
66	24
67	1
68	11
69	1
70	41
71	4
72	86
73	4
74	10
75	25
76	11
77	0
78	21
79	4
80	7
81	4
82	10
83	1
84	52
85	1
86	7
87	10
88	22
89	0
90	26
91	11
92	56
93	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	1
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	0
20	1
21	1
22	3
23	1
24	2
25	1
26	1
27	0
28	12
29	4
30	3
31	0
32	1
33	1
34	1
35	1
36	12
37	1
38	1
39	4
40	5
41	1
42	9
43	4
44	10
45	8
46	3
47	4
48	25
49	0
50	10
51	11
52	11
53	4
54	1
55	4
56	15
57	4
58	22
59	1
60	57
61	0
62	1
63	4
64	10
65	1
66	24
67	1
68	11
69	1
70	41
71	4
72	86
73	4
74	10
75	25
76	11
77	0
78	21
79	4
80	7
81	4
82	10
83	1
84	52
85	1
86	7
87	10
88	22
89	0
90	26
91	11
92	56
93	1