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.

A168290 T(n,k) = 5*A046802(n+1,k+1) - 4*A007318(n,k), triangle read by rows (0 <= k <= n).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 7
5 1
6 1
7 23
8 23
9 1
10 1
11 59
12 141
13 59
14 1
15 1
16 135
17 615
18 615
19 135
20 1
21 1
22 291
23 2305
24 4335
25 2305
26 291
27 1
28 1
29 607
30 7971
31 25415
32 25415
33 7971
34 607
35 1
36 1
37 1243
38 26293
39 133771
40 224365
41 133771
42 26293
43 1243
44 1
45 1
46 2519
47 84191
48 656039
49 1722251
50 1722251
51 656039

List of values

[1, 1, 1, 1, 7, 1, 1, 23, 23, 1, 1, 59, 141, 59, 1, 1, 135, 615, 615, 135, 1, 1, 291, 2305, 4335, 2305, 291, 1, 1, 607, 7971, 25415, 25415, 7971, 607, 1, 1, 1243, 26293, 133771, 224365, 133771, 26293, 1243, 1, 1, 2519, 84191, 656039, 1722251, 1722251, 656039]