A254205 - cp's OEIS frontend

A254205 Number of length 2 1..(n+2) arrays with no leading or trailing partial sum equal to a prime.

n	a(n)
1	0
2	1
3	1
4	4
5	4
6	11
7	16
8	23
9	23
10	34
11	34
12	47
13	58
14	73
15	73
16	92
17	92
18	113
19	130
20	149
21	149
22	178
23	197
24	226
25	249
26	278
27	278
28	315
29	315
30	348
31	377
32	414
33	447
34	490
35	490
36	531
37	568
38	613
39	613
40	666
41	666
42	715
43	758
44	809
45	809
46	870
47	917
48	978
49	1029
50	1086
51	1086
52	1155
53	1206
54	1275
55	1330
56	1393

[0, 1, 1, 4, 4, 11, 16, 23, 23, 34, 34, 47, 58, 73, 73, 92, 92, 113, 130, 149, 149, 178, 197, 226, 249, 278, 278, 315, 315, 348, 377, 414, 447, 490, 490, 531, 568, 613, 613, 666, 666, 715, 758, 809, 809, 870, 917, 978, 1029, 1086, 1086, 1155, 1206, 1275, 1330, 1393]

cp's OEIS Frontend

A254205 Number of length 2 1..(n+2) arrays with no leading or trailing partial sum equal to a prime.

Table of values

List of values