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.

A026585 a(n) = T(n,n), T given by A026584. Also a(n) is the number of integer strings s(0), ..., s(n) counted by T, such that s(n)=0.

Table of values

n a(n)
0 1
1 0
2 2
3 2
4 8
5 14
6 40
7 86
8 222
9 518
10 1296
11 3130
12 7770
13 19066
14 47324
15 117094
16 291260
17 724302
18 1806220
19 4507230
20 11266718
21 28188070
22 70609316
23 177023466
24 444231564
25 1115639586
26 2803975860
27 7052132546
28 17748069294
29 44693162266

List of values

[1, 0, 2, 2, 8, 14, 40, 86, 222, 518, 1296, 3130, 7770, 19066, 47324, 117094, 291260, 724302, 1806220, 4507230, 11266718, 28188070, 70609316, 177023466, 444231564, 1115639586, 2803975860, 7052132546, 17748069294, 44693162266]