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.

A141688 Triangle T(n, k) = Fibonacci(2*k)*T(n-1, k) + Fibonacci(2*(n-k+1))*T(n-1, k-1), with T(n, 1) = T(n, n) = 1, read by rows.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 6
6 1
7 1
8 26
9 26
10 1
11 1
12 99
13 416
14 99
15 1
16 1
17 352
18 5407
19 5407
20 352
21 1
22 1
23 1200
24 62616
25 227094
26 62616
27 1200
28 1
29 1
30 3977
31 673728
32 8212854
33 8212854
34 673728
35 3977
36 1
37 1
38 12918
39 6889153
40 269486766
41 903413940
42 269486766
43 6889153
44 12918
45 1
46 1
47 41338
48 67863290
49 8256432767
50 88493861004
51 88493861004
52 8256432767
53 67863290
54 41338
55 1

List of values

[1, 1, 1, 1, 6, 1, 1, 26, 26, 1, 1, 99, 416, 99, 1, 1, 352, 5407, 5407, 352, 1, 1, 1200, 62616, 227094, 62616, 1200, 1, 1, 3977, 673728, 8212854, 8212854, 673728, 3977, 1, 1, 12918, 6889153, 269486766, 903413940, 269486766, 6889153, 12918, 1, 1, 41338, 67863290, 8256432767, 88493861004, 88493861004, 8256432767, 67863290, 41338, 1]