A238894 - cp's OEIS frontend

A238894 Irregular triangle of the number of times that sums +- 3 +- 5 +- 7 +- 11 +-...+- prime(2n+1) equal an even number in the range -d to d, where d = 3 + 5 + 7 + 11 +...+ prime(2n+1).

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

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

cp's OEIS Frontend

A238894 Irregular triangle of the number of times that sums +- 3 +- 5 +- 7 +- 11 +-...+- prime(2n+1) equal an even number in the range -d to d, where d = 3 + 5 + 7 + 11 +...+ prime(2n+1).

Table of values

List of values

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

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

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