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.

A160708 Convolution triangle by rows, row sums = the Robbins sequence, A005130 starting with offset 1.

Table of values

n a(n)
1 1
2 1
3 1
4 3
5 1
6 3
7 18
8 3
9 3
10 18
11 192
12 18
13 9
14 18
15 192
16 3472
17 192
18 54
19 54
20 192
21 3472
22 104964
23 3472
24 576
25 324
26 576
27 3472
28 104964
29 5606272
30 104964
31 10416
32 3456
33 3456
34 10416
35 104964
36 5306272

List of values

[1, 1, 1, 3, 1, 3, 18, 3, 3, 18, 192, 18, 9, 18, 192, 3472, 192, 54, 54, 192, 3472, 104964, 3472, 576, 324, 576, 3472, 104964, 5606272, 104964, 10416, 3456, 3456, 10416, 104964, 5306272]