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.

A144445 Triangle, read by rows, T(n,k) = (7*n-7*k+1)*T(n-1, k-2) + (7*k-6)*T(n-1, k) + 7*T(n-2, k-1) with T(n, 1) = T(n, n) = 1.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 23
6 1
7 1
8 206
9 206
10 1
11 1
12 1677
13 6341
14 1677
15 1
16 1
17 13452
18 133451
19 133451
20 13452
21 1
22 1
23 107659
24 2403612
25 5916231
26 2403612
27 107659
28 1
29 1
30 861322
31 40024068
32 200795987
33 200795987
34 40024068
35 861322
36 1
37 1
38 6890633
39 638151479
40 5875203446
41 11687580863
42 5875203446
43 638151479
44 6890633
45 1

List of values

[1, 1, 1, 1, 23, 1, 1, 206, 206, 1, 1, 1677, 6341, 1677, 1, 1, 13452, 133451, 133451, 13452, 1, 1, 107659, 2403612, 5916231, 2403612, 107659, 1, 1, 861322, 40024068, 200795987, 200795987, 40024068, 861322, 1, 1, 6890633, 638151479, 5875203446, 11687580863, 5875203446, 638151479, 6890633, 1]