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.

A365672 Triangle read by rows. T(n, k) = 1 if k = 0, equals T(n, k-1) if k = n, and otherwise is (n - k + 1) * (2 * (n - k) + 1) * T(n, k - 1) + T(n - 1, k).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 7
5 7
6 1
7 22
8 139
9 139
10 1
11 50
12 889
13 5473
14 5473
15 1
16 95
17 3549
18 58708
19 357721
20 357721
21 1
22 161
23 10794
24 360940
25 5771821
26 34988647
27 34988647
28 1
29 252
30 27426
31 1595110
32 50434901
33 791512162
34 4784061619
35 4784061619

List of values

[1, 1, 1, 1, 7, 7, 1, 22, 139, 139, 1, 50, 889, 5473, 5473, 1, 95, 3549, 58708, 357721, 357721, 1, 161, 10794, 360940, 5771821, 34988647, 34988647, 1, 252, 27426, 1595110, 50434901, 791512162, 4784061619, 4784061619]