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.

A296289 Solution of the complementary equation a(n) = a(n-1) + a(n-2) + n*b(n-1), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.

Table of values

n a(n)
0 1
1 3
2 12
3 30
4 66
5 131
6 245
7 439
8 764
9 1302
10 2196
11 3652
12 6028
13 9888
14 16154
15 26312
16 42770
17 69422
18 112570
19 182410
20 295440
21 478354
22 774344
23 1253296
24 2028288
25 3282284
26 5311326
27 8594447
28 13906669
29 22502073
30 36409762
31 58912920
32 95323834
33 154237975
34 249563101

List of values

[1, 3, 12, 30, 66, 131, 245, 439, 764, 1302, 2196, 3652, 6028, 9888, 16154, 26312, 42770, 69422, 112570, 182410, 295440, 478354, 774344, 1253296, 2028288, 3282284, 5311326, 8594447, 13906669, 22502073, 36409762, 58912920, 95323834, 154237975, 249563101]