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.

A129398 Pyramid P(h,x,y)=P(h,x,y-1)+P(h,x,y+1)+P(h,x-1,y)+P(h,x+1,y)+P(h-1,x,y), read level by level, x by x.

Table of values

n a(n)
0 1
1 1
2 1
3 5
4 1
5 1
6 1
7 1
8 -3
9 1
10 1
11 -3
12 -7
13 -3
14 1
15 1
16 -3
17 1
18 1
19 1
20 1
21 4
22 1
23 1
24 3
25 0
26 3
27 1
28 1
29 4
30 0
31 -7
32 0
33 4
34 1
35 1
36 3
37 0
38 3
39 1
40 1
41 4
42 1
43 1

List of values

[1, 1, 1, 5, 1, 1, 1, 1, -3, 1, 1, -3, -7, -3, 1, 1, -3, 1, 1, 1, 1, 4, 1, 1, 3, 0, 3, 1, 1, 4, 0, -7, 0, 4, 1, 1, 3, 0, 3, 1, 1, 4, 1, 1]