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.

A296223 Solution of the complementary equation a(n) = a(0)*b(n-1) + a(1)*b(n-2) + ... + a(n-1)*b(0) - 1, where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.

Table of values

n a(n)
0 1
1 3
2 9
3 34
4 124
5 453
6 1654
7 6040
8 22055
9 80532
10 294058
11 1073735
12 3920679
13 14316124
14 52274468
15 190877084
16 696976221
17 2544966858
18 9292793804
19 33932079081
20 123900951107
21 452416889887
22 1651973131976
23 6032080786047
24 22025781112962
25 80425818360771

List of values

[1, 3, 9, 34, 124, 453, 1654, 6040, 22055, 80532, 294058, 1073735, 3920679, 14316124, 52274468, 190877084, 696976221, 2544966858, 9292793804, 33932079081, 123900951107, 452416889887, 1651973131976, 6032080786047, 22025781112962, 80425818360771]