A135550 - cp's OEIS frontend

A135550 Number of bases b, 1 < b < n-1, in which n is a palindrome, allowing leading zeros when testing if a number is a palindrome.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	2
7	1
8	3
9	2
10	4
11	0
12	5
13	1
14	3
15	3
16	5
17	2
18	6
19	0
20	6
21	4
22	2
23	1
24	8
25	2
26	4
27	4
28	6
29	1
30	8
31	2
32	6
33	3
34	4
35	2
36	10
37	1
38	3
39	3
40	9
41	1
42	8
43	1
44	4
45	5
46	4
47	0
48	11
49	2
50	6
51	4
52	6
53	0
54	8
55	4
56	8
57	4
58	2
59	1
60	14
61	1
62	4
63	6
64	8
65	5
66	7
67	2
68	7
69	3
70	6
71	1
72	14
73	2
74	3
75	5
76	4
77	2
78	9
79	0
80	12
81	5
82	4
83	1
84	14
85	5
86	3
87	2
88	7
89	1
90	13
91	4
92	6
93	4
94	2
95	2

[0, 0, 0, 0, 1, 1, 2, 1, 3, 2, 4, 0, 5, 1, 3, 3, 5, 2, 6, 0, 6, 4, 2, 1, 8, 2, 4, 4, 6, 1, 8, 2, 6, 3, 4, 2, 10, 1, 3, 3, 9, 1, 8, 1, 4, 5, 4, 0, 11, 2, 6, 4, 6, 0, 8, 4, 8, 4, 2, 1, 14, 1, 4, 6, 8, 5, 7, 2, 7, 3, 6, 1, 14, 2, 3, 5, 4, 2, 9, 0, 12, 5, 4, 1, 14, 5, 3, 2, 7, 1, 13, 4, 6, 4, 2, 2]

cp's OEIS Frontend

A135550 Number of bases b, 1 < b < n-1, in which n is a palindrome, allowing leading zeros when testing if a number is a palindrome.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	2
7	1
8	3
9	2
10	4
11	0
12	5
13	1
14	3
15	3
16	5
17	2
18	6
19	0
20	6
21	4
22	2
23	1
24	8
25	2
26	4
27	4
28	6
29	1
30	8
31	2
32	6
33	3
34	4
35	2
36	10
37	1
38	3
39	3
40	9
41	1
42	8
43	1
44	4
45	5
46	4
47	0
48	11
49	2
50	6
51	4
52	6
53	0
54	8
55	4
56	8
57	4
58	2
59	1
60	14
61	1
62	4
63	6
64	8
65	5
66	7
67	2
68	7
69	3
70	6
71	1
72	14
73	2
74	3
75	5
76	4
77	2
78	9
79	0
80	12
81	5
82	4
83	1
84	14
85	5
86	3
87	2
88	7
89	1
90	13
91	4
92	6
93	4
94	2
95	2

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	2
7	1
8	3
9	2
10	4
11	0
12	5
13	1
14	3
15	3
16	5
17	2
18	6
19	0
20	6
21	4
22	2
23	1
24	8
25	2
26	4
27	4
28	6
29	1
30	8
31	2
32	6
33	3
34	4
35	2
36	10
37	1
38	3
39	3
40	9
41	1
42	8
43	1
44	4
45	5
46	4
47	0
48	11
49	2
50	6
51	4
52	6
53	0
54	8
55	4
56	8
57	4
58	2
59	1
60	14
61	1
62	4
63	6
64	8
65	5
66	7
67	2
68	7
69	3
70	6
71	1
72	14
73	2
74	3
75	5
76	4
77	2
78	9
79	0
80	12
81	5
82	4
83	1
84	14
85	5
86	3
87	2
88	7
89	1
90	13
91	4
92	6
93	4
94	2
95	2

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	1
6	2
7	1
8	3
9	2
10	4
11	0
12	5
13	1
14	3
15	3
16	5
17	2
18	6
19	0
20	6
21	4
22	2
23	1
24	8
25	2
26	4
27	4
28	6
29	1
30	8
31	2
32	6
33	3
34	4
35	2
36	10
37	1
38	3
39	3
40	9
41	1
42	8
43	1
44	4
45	5
46	4
47	0
48	11
49	2
50	6
51	4
52	6
53	0
54	8
55	4
56	8
57	4
58	2
59	1
60	14
61	1
62	4
63	6
64	8
65	5
66	7
67	2
68	7
69	3
70	6
71	1
72	14
73	2
74	3
75	5
76	4
77	2
78	9
79	0
80	12
81	5
82	4
83	1
84	14
85	5
86	3
87	2
88	7
89	1
90	13
91	4
92	6
93	4
94	2
95	2