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.

A291412 p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S - 2 S^2 + S^3.

Table of values

n a(n)
0 1
1 4
2 10
3 24
4 62
5 156
6 391
7 987
8 2484
9 6252
10 15744
11 39636
12 99788
13 251237
14 632525
15 1592480
16 4009326
17 10094104
18 25413498
19 63982496
20 161086011
21 405559431
22 1021059816
23 2570679048
24 6472089792
25 16294506424
26 41023988824
27 103284359545
28 260034658537
29 654678248796

List of values

[1, 4, 10, 24, 62, 156, 391, 987, 2484, 6252, 15744, 39636, 99788, 251237, 632525, 1592480, 4009326, 10094104, 25413498, 63982496, 161086011, 405559431, 1021059816, 2570679048, 6472089792, 16294506424, 41023988824, 103284359545, 260034658537, 654678248796]