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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.

A142461 Triangle read by rows: T(n,k) (1 <= k <= n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (m*n-m*k+1)*T(n-1,k-1) + (m*k-m+1)*T(n-1,k), where m = 6.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 14
6 1
7 1
8 111
9 111
10 1
11 1
12 796
13 2886
14 796
15 1
16 1
17 5597
18 52642
19 52642
20 5597
21 1
22 1
23 39210
24 824271
25 2000396
26 824271
27 39210
28 1
29 1
30 274507
31 11931033
32 58614299
33 58614299
34 11931033
35 274507
36 1
37 1
38 1921592
39 165260188
40 1483533704
41 2930714950
42 1483533704
43 165260188
44 1921592
45 1

List of values

[1, 1, 1, 1, 14, 1, 1, 111, 111, 1, 1, 796, 2886, 796, 1, 1, 5597, 52642, 52642, 5597, 1, 1, 39210, 824271, 2000396, 824271, 39210, 1, 1, 274507, 11931033, 58614299, 58614299, 11931033, 274507, 1, 1, 1921592, 165260188, 1483533704, 2930714950, 1483533704, 165260188, 1921592, 1]