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.

A294560 Solution of the complementary equation a(n) = a(n-1) + a(n-2) + 2*b(n-1) + 2*b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.

Table of values

n a(n)
0 1
1 2
2 17
3 37
4 76
5 139
6 245
7 418
8 701
9 1161
10 1908
11 3119
12 5081
13 8258
14 13401
15 21727
16 35202
17 57007
18 92291
19 149384
20 241765
21 391243
22 633106
23 1024451
24 1657663
25 2682224
26 4340001
27 7022343
28 11362466
29 18384935
30 29747531
31 48132600
32 77880269
33 126013011
34 203893428

List of values

[1, 2, 17, 37, 76, 139, 245, 418, 701, 1161, 1908, 3119, 5081, 8258, 13401, 21727, 35202, 57007, 92291, 149384, 241765, 391243, 633106, 1024451, 1657663, 2682224, 4340001, 7022343, 11362466, 18384935, 29747531, 48132600, 77880269, 126013011, 203893428]