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.

A092687 First column and main diagonal of triangle A092686, in which the convolution of each row with {1,2} produces a triangle that, when flattened, equals the flattened form of A092686.

Table of values

n a(n)
0 1
1 2
2 6
3 16
4 46
5 132
6 384
7 1120
8 3278
9 9612
10 28236
11 83072
12 244752
13 722048
14 2132704
15 6306304
16 18666190
17 55300732
18 163968612
19 486528288
20 1444571068
21 4291629384
22 12756459936
23 37934818112
24 112855778768
25 335867740704
26 999895548736

List of values

[1, 2, 6, 16, 46, 132, 384, 1120, 3278, 9612, 28236, 83072, 244752, 722048, 2132704, 6306304, 18666190, 55300732, 163968612, 486528288, 1444571068, 4291629384, 12756459936, 37934818112, 112855778768, 335867740704, 999895548736]