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.

A257607 Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = x + 5.

Table of values

n a(n)
0 1
1 5
2 5
3 25
4 60
5 25
6 125
7 535
8 535
9 125
10 625
11 4210
12 7490
13 4210
14 625
15 3125
16 30885
17 86110
18 86110
19 30885
20 3125
21 15625
22 216560
23 880735
24 1377760
25 880735
26 216560
27 15625
28 78125
29 1471235
30 8330745
31 18948695
32 18948695
33 8330745
34 1471235
35 78125
36 390625
37 9764910
38 74498800
39 234897010
40 341076510
41 234897010
42 74498800
43 9764910
44 390625

List of values

[1, 5, 5, 25, 60, 25, 125, 535, 535, 125, 625, 4210, 7490, 4210, 625, 3125, 30885, 86110, 86110, 30885, 3125, 15625, 216560, 880735, 1377760, 880735, 216560, 15625, 78125, 1471235, 8330745, 18948695, 18948695, 8330745, 1471235, 78125, 390625, 9764910, 74498800, 234897010, 341076510, 234897010, 74498800, 9764910, 390625]