A157423 - cp's OEIS frontend

A157423 Triangle read by rows, T(n,k) = 0 if (n-k+1) is prime, else 1.

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

[1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1]

cp's OEIS Frontend

A157423 Triangle read by rows, T(n,k) = 0 if (n-k+1) is prime, else 1.

Table of values

List of values

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

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

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