A181670 - cp's OEIS frontend

A181670 Triangle read by rows: T(n,k) = 2^(n-1) mod prime(k), 1 <= k <= n.

n	a(n)
1	1
2	0
3	2
4	0
5	1
6	4
7	0
8	2
9	3
10	1
11	0
12	1
13	1
14	2
15	5
16	0
17	2
18	2
19	4
20	10
21	6
22	0
23	1
24	4
25	1
26	9
27	12
28	13
29	0
30	2
31	3
32	2
33	7
34	11
35	9
36	14
37	0
38	1
39	1
40	4
41	3
42	9
43	1
44	9
45	3
46	0
47	2
48	2
49	1
50	6
51	5
52	2
53	18
54	6
55	19
56	0
57	1
58	4
59	2
60	1
61	10
62	4
63	17
64	12
65	9
66	1
67	0
68	2
69	3
70	4
71	2
72	7
73	8
74	15
75	1
76	18
77	2
78	13
79	0
80	1
81	1
82	1
83	4
84	1
85	16
86	11
87	2
88	7
89	4
90	26
91	37
92	0
93	2
94	2
95	2
96	8
97	2
98	15

[1, 0, 2, 0, 1, 4, 0, 2, 3, 1, 0, 1, 1, 2, 5, 0, 2, 2, 4, 10, 6, 0, 1, 4, 1, 9, 12, 13, 0, 2, 3, 2, 7, 11, 9, 14, 0, 1, 1, 4, 3, 9, 1, 9, 3, 0, 2, 2, 1, 6, 5, 2, 18, 6, 19, 0, 1, 4, 2, 1, 10, 4, 17, 12, 9, 1, 0, 2, 3, 4, 2, 7, 8, 15, 1, 18, 2, 13, 0, 1, 1, 1, 4, 1, 16, 11, 2, 7, 4, 26, 37, 0, 2, 2, 2, 8, 2, 15]

cp's OEIS Frontend

A181670 Triangle read by rows: T(n,k) = 2^(n-1) mod prime(k), 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	0
5	1
6	4
7	0
8	2
9	3
10	1
11	0
12	1
13	1
14	2
15	5
16	0
17	2
18	2
19	4
20	10
21	6
22	0
23	1
24	4
25	1
26	9
27	12
28	13
29	0
30	2
31	3
32	2
33	7
34	11
35	9
36	14
37	0
38	1
39	1
40	4
41	3
42	9
43	1
44	9
45	3
46	0
47	2
48	2
49	1
50	6
51	5
52	2
53	18
54	6
55	19
56	0
57	1
58	4
59	2
60	1
61	10
62	4
63	17
64	12
65	9
66	1
67	0
68	2
69	3
70	4
71	2
72	7
73	8
74	15
75	1
76	18
77	2
78	13
79	0
80	1
81	1
82	1
83	4
84	1
85	16
86	11
87	2
88	7
89	4
90	26
91	37
92	0
93	2
94	2
95	2
96	8
97	2
98	15

n	a(n)
1	1
2	0
3	2
4	0
5	1
6	4
7	0
8	2
9	3
10	1
11	0
12	1
13	1
14	2
15	5
16	0
17	2
18	2
19	4
20	10
21	6
22	0
23	1
24	4
25	1
26	9
27	12
28	13
29	0
30	2
31	3
32	2
33	7
34	11
35	9
36	14
37	0
38	1
39	1
40	4
41	3
42	9
43	1
44	9
45	3
46	0
47	2
48	2
49	1
50	6
51	5
52	2
53	18
54	6
55	19
56	0
57	1
58	4
59	2
60	1
61	10
62	4
63	17
64	12
65	9
66	1
67	0
68	2
69	3
70	4
71	2
72	7
73	8
74	15
75	1
76	18
77	2
78	13
79	0
80	1
81	1
82	1
83	4
84	1
85	16
86	11
87	2
88	7
89	4
90	26
91	37
92	0
93	2
94	2
95	2
96	8
97	2
98	15

n	a(n)
1	1
2	0
3	2
4	0
5	1
6	4
7	0
8	2
9	3
10	1
11	0
12	1
13	1
14	2
15	5
16	0
17	2
18	2
19	4
20	10
21	6
22	0
23	1
24	4
25	1
26	9
27	12
28	13
29	0
30	2
31	3
32	2
33	7
34	11
35	9
36	14
37	0
38	1
39	1
40	4
41	3
42	9
43	1
44	9
45	3
46	0
47	2
48	2
49	1
50	6
51	5
52	2
53	18
54	6
55	19
56	0
57	1
58	4
59	2
60	1
61	10
62	4
63	17
64	12
65	9
66	1
67	0
68	2
69	3
70	4
71	2
72	7
73	8
74	15
75	1
76	18
77	2
78	13
79	0
80	1
81	1
82	1
83	4
84	1
85	16
86	11
87	2
88	7
89	4
90	26
91	37
92	0
93	2
94	2
95	2
96	8
97	2
98	15