A175620 - cp's OEIS frontend

A175620 Triangle read by rows: T(n,k) = 2^(prime(n) - k - 1) mod n, 1 <= k <= n.

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

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

cp's OEIS Frontend

A175620 Triangle read by rows: T(n,k) = 2^(prime(n) - k - 1) mod n, 1 <= k <= n.

Table of values

List of values

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

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

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