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.

A295143 Solution of the complementary equation a(n) = 2*a(n-1) + a(n-2) + b(n-1), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.

Table of values

n a(n)
0 1
1 2
2 9
3 25
4 65
5 162
6 397
7 966
8 2340
9 5658
10 13669
11 33010
12 79704
13 192434
14 464589
15 1121630
16 2707868
17 6537386
18 15782661
19 38102730
20 91988144
21 222079042

List of values

[1, 2, 9, 25, 65, 162, 397, 966, 2340, 5658, 13669, 33010, 79704, 192434, 464589, 1121630, 2707868, 6537386, 15782661, 38102730, 91988144, 222079042]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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