A254212 - cp's OEIS frontend

A254212 Number of length n 1..(2+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.

n	a(n)
1	2
2	0
3	1
4	2
5	2
6	2
7	2
8	2
9	5
10	4
11	5
12	8
13	31
14	64
15	83
16	66
17	60
18	104
19	158
20	240
21	846
22	2990
23	6296
24	8440
25	10213
26	14034
27	16843
28	15538
29	20339
30	57766
31	202098
32	751354
33	2575608
34	6730882
35	12332861
36	15945860
37	15602393
38	13432584
39	12250132
40	12687426
41	23661609
42	144529800

[2, 0, 1, 2, 2, 2, 2, 2, 5, 4, 5, 8, 31, 64, 83, 66, 60, 104, 158, 240, 846, 2990, 6296, 8440, 10213, 14034, 16843, 15538, 20339, 57766, 202098, 751354, 2575608, 6730882, 12332861, 15945860, 15602393, 13432584, 12250132, 12687426, 23661609, 144529800]

cp's OEIS Frontend

A254212 Number of length n 1..(2+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.

Table of values

List of values