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.

A112626 Triangle read by rows: T(n,k) = Sum_{j=0..n} binomial(n, k+j)*2^(n-k-j).

Table of values

n a(n)
0 1
1 3
2 1
3 9
4 5
5 1
6 27
7 19
8 7
9 1
10 81
11 65
12 33
13 9
14 1
15 243
16 211
17 131
18 51
19 11
20 1
21 729
22 665
23 473
24 233
25 73
26 13
27 1
28 2187
29 2059
30 1611
31 939
32 379
33 99
34 15
35 1
36 6561
37 6305
38 5281
39 3489
40 1697
41 577
42 129
43 17
44 1
45 19683
46 19171
47 16867
48 12259
49 6883
50 2851
51 835
52 163
53 19
54 1
55 59049
56 58025

List of values

[1, 3, 1, 9, 5, 1, 27, 19, 7, 1, 81, 65, 33, 9, 1, 243, 211, 131, 51, 11, 1, 729, 665, 473, 233, 73, 13, 1, 2187, 2059, 1611, 939, 379, 99, 15, 1, 6561, 6305, 5281, 3489, 1697, 577, 129, 17, 1, 19683, 19171, 16867, 12259, 6883, 2851, 835, 163, 19, 1, 59049, 58025]