A212212 - cp's OEIS frontend

A212212 Array read by antidiagonals: pi(n) + pi(k) - pi(n+k), where pi() = A000720.

n	a(n)
1	-1
2	-1
3	-1
4	0
5	0
6	0
7	-1
8	0
9	0
10	-1
11	0
12	0
13	1
14	0
15	0
16	-1
17	0
18	0
19	0
20	0
21	-1
22	0
23	0
24	1
25	0
26	1
27	0
28	0
29	0
30	1
31	1
32	1
33	1
34	1
35	1
36	0
37	0
38	1
39	2
40	1
41	2
42	1
43	2
44	1
45	0
46	-1
47	0
48	1
49	1
50	1
51	1
52	1
53	1
54	0
55	-1
56	0
57	0
58	1
59	1
60	2
61	1
62	2
63	1
64	1
65	0
66	0
67	-1
68	0
69	0
70	0
71	1
72	1
73	1
74	1
75	0
76	0
77	0
78	-1
79	0
80	0
81	1
82	0
83	1
84	1
85	2
86	1
87	1
88	0
89	1
90	0
91	0
92	0
93	1
94	1
95	1
96	1
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	1
105	0

[-1, -1, -1, 0, 0, 0, -1, 0, 0, -1, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 2, 1, 2, 1, 2, 1, 0, -1, 0, 1, 1, 1, 1, 1, 1, 0, -1, 0, 0, 1, 1, 2, 1, 2, 1, 1, 0, 0, -1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, -1, 0, 0, 1, 0, 1, 1, 2, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 0]

cp's OEIS Frontend

A212212 Array read by antidiagonals: pi(n) + pi(k) - pi(n+k), where pi() = A000720.

Table of values

List of values

n	a(n)
1	-1
2	-1
3	-1
4	0
5	0
6	0
7	-1
8	0
9	0
10	-1
11	0
12	0
13	1
14	0
15	0
16	-1
17	0
18	0
19	0
20	0
21	-1
22	0
23	0
24	1
25	0
26	1
27	0
28	0
29	0
30	1
31	1
32	1
33	1
34	1
35	1
36	0
37	0
38	1
39	2
40	1
41	2
42	1
43	2
44	1
45	0
46	-1
47	0
48	1
49	1
50	1
51	1
52	1
53	1
54	0
55	-1
56	0
57	0
58	1
59	1
60	2
61	1
62	2
63	1
64	1
65	0
66	0
67	-1
68	0
69	0
70	0
71	1
72	1
73	1
74	1
75	0
76	0
77	0
78	-1
79	0
80	0
81	1
82	0
83	1
84	1
85	2
86	1
87	1
88	0
89	1
90	0
91	0
92	0
93	1
94	1
95	1
96	1
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	1
105	0

n	a(n)
1	-1
2	-1
3	-1
4	0
5	0
6	0
7	-1
8	0
9	0
10	-1
11	0
12	0
13	1
14	0
15	0
16	-1
17	0
18	0
19	0
20	0
21	-1
22	0
23	0
24	1
25	0
26	1
27	0
28	0
29	0
30	1
31	1
32	1
33	1
34	1
35	1
36	0
37	0
38	1
39	2
40	1
41	2
42	1
43	2
44	1
45	0
46	-1
47	0
48	1
49	1
50	1
51	1
52	1
53	1
54	0
55	-1
56	0
57	0
58	1
59	1
60	2
61	1
62	2
63	1
64	1
65	0
66	0
67	-1
68	0
69	0
70	0
71	1
72	1
73	1
74	1
75	0
76	0
77	0
78	-1
79	0
80	0
81	1
82	0
83	1
84	1
85	2
86	1
87	1
88	0
89	1
90	0
91	0
92	0
93	1
94	1
95	1
96	1
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	1
105	0

n	a(n)
1	-1
2	-1
3	-1
4	0
5	0
6	0
7	-1
8	0
9	0
10	-1
11	0
12	0
13	1
14	0
15	0
16	-1
17	0
18	0
19	0
20	0
21	-1
22	0
23	0
24	1
25	0
26	1
27	0
28	0
29	0
30	1
31	1
32	1
33	1
34	1
35	1
36	0
37	0
38	1
39	2
40	1
41	2
42	1
43	2
44	1
45	0
46	-1
47	0
48	1
49	1
50	1
51	1
52	1
53	1
54	0
55	-1
56	0
57	0
58	1
59	1
60	2
61	1
62	2
63	1
64	1
65	0
66	0
67	-1
68	0
69	0
70	0
71	1
72	1
73	1
74	1
75	0
76	0
77	0
78	-1
79	0
80	0
81	1
82	0
83	1
84	1
85	2
86	1
87	1
88	0
89	1
90	0
91	0
92	0
93	1
94	1
95	1
96	1
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	1
105	0