cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A254542 Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime.

Table of values

n a(n)
1 2
2 20
3 45
4 160
5 222
6 576
7 1026
8 1849
9 2461
10 4195
11 5217
12 8052
13 11098
14 15300
15 18210
16 25269
17 29296
18 38791
19 48468
20 60634
21 68591
22 87149
23 104149
24 126729
25 149195
26 177607
27 196492
28 236417
29 258581
30 301770
31 345756
32 398586
33 452724
34 522973
35 563863
36 640216

List of values

[2, 20, 45, 160, 222, 576, 1026, 1849, 2461, 4195, 5217, 8052, 11098, 15300, 18210, 25269, 29296, 38791, 48468, 60634, 68591, 87149, 104149, 126729, 149195, 177607, 196492, 236417, 258581, 301770, 345756, 398586, 452724, 522973, 563863, 640216]