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.

A166973 Triangle T(n,k) read by rows: T(n, k) = (m*n - m*k + 1)*T(n - 1, k - 1) + (5*k - 4)*(m*k - (m - 1))*T(n - 1, k) where m = 0.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 7
6 1
7 1
8 43
9 18
10 1
11 1
12 259
13 241
14 34
15 1
16 1
17 1555
18 2910
19 785
20 55
21 1
22 1
23 9331
24 33565
25 15470
26 1940
27 81
28 1
29 1
30 55987
31 378546
32 281085
33 56210
34 4046
35 112
36 1
37 1
38 335923
39 4219993
40 4875906
41 1461495
42 161406
43 7518
44 148
45 1
46 1
47 2015539
48 46755846
49 82234489

List of values

[1, 1, 1, 1, 7, 1, 1, 43, 18, 1, 1, 259, 241, 34, 1, 1, 1555, 2910, 785, 55, 1, 1, 9331, 33565, 15470, 1940, 81, 1, 1, 55987, 378546, 281085, 56210, 4046, 112, 1, 1, 335923, 4219993, 4875906, 1461495, 161406, 7518, 148, 1, 1, 2015539, 46755846, 82234489]