A128311 - cp's OEIS frontend

A128311 Remainder upon division of 2^(n-1)-1 by n.

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

[0, 1, 0, 3, 0, 1, 0, 7, 3, 1, 0, 7, 0, 1, 3, 15, 0, 13, 0, 7, 3, 1, 0, 7, 15, 1, 12, 7, 0, 1, 0, 31, 3, 1, 8, 31, 0, 1, 3, 7, 0, 31, 0, 7, 30, 1, 0, 31, 14, 11, 3, 7, 0, 13, 48, 15, 3, 1, 0, 7, 0, 1, 3, 63, 15, 31, 0, 7, 3, 21, 0, 31, 0, 1, 33, 7, 8, 31, 0, 47, 39, 1, 0, 31, 15, 1, 3, 39, 0, 31, 63]

cp's OEIS Frontend

A128311 Remainder upon division of 2^(n-1)-1 by n.

Table of values

List of values

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

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

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