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.

A291030 p-INVERT of the positive integers, where p(S) = 1 - S - S^2 - S^3 - S^4.

Table of values

n a(n)
0 1
1 4
2 15
3 56
4 208
5 767
6 2812
7 10278
8 37530
9 137044
10 500571
11 1828818
12 6682264
13 24416877
14 89218462
15 325997507
16 1191160160
17 4352355633
18 15902968338
19 58107491971
20 212317732888
21 775783501558
22 2834620130881
23 10357363200392
24 37844566834330
25 138279520124262

List of values

[1, 4, 15, 56, 208, 767, 2812, 10278, 37530, 137044, 500571, 1828818, 6682264, 24416877, 89218462, 325997507, 1191160160, 4352355633, 15902968338, 58107491971, 212317732888, 775783501558, 2834620130881, 10357363200392, 37844566834330, 138279520124262]