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.

A142597 Triangle read by rows: t(n,k)=t(n - 1, k - 1) + 4* t(n - 1, k) + 3*t(n - 1, k - 1).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 8
6 1
7 1
8 36
9 36
10 1
11 1
12 148
13 288
14 148
15 1
16 1
17 596
18 1744
19 1744
20 596
21 1
22 1
23 2388
24 9360
25 13952
26 9360
27 2388
28 1
29 1
30 9556
31 46992
32 93248
33 93248
34 46992
35 9556
36 1
37 1
38 38228
39 226192
40 560960
41 745984
42 560960
43 226192
44 38228
45 1
46 1
47 152916
48 1057680
49 3148608

List of values

[1, 1, 1, 1, 8, 1, 1, 36, 36, 1, 1, 148, 288, 148, 1, 1, 596, 1744, 1744, 596, 1, 1, 2388, 9360, 13952, 9360, 2388, 1, 1, 9556, 46992, 93248, 93248, 46992, 9556, 1, 1, 38228, 226192, 560960, 745984, 560960, 226192, 38228, 1, 1, 152916, 1057680, 3148608]