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.

A034267 a(n) = f(n,n) where f is given in A034261.

Table of values

n a(n)
0 0
1 1
2 7
3 39
4 196
5 930
6 4257
7 19019
8 83512
9 361998
10 1553630
11 6615686
12 27992472
13 117823940
14 493768485
15 2061580275
16 8580127920
17 35611376790
18 147447066690
19 609200868210
20 2512267906200
21 10342848445020
22 42516521451690
23 174535009040574
24 715599131576976
25 2930673247541900

List of values

[0, 1, 7, 39, 196, 930, 4257, 19019, 83512, 361998, 1553630, 6615686, 27992472, 117823940, 493768485, 2061580275, 8580127920, 35611376790, 147447066690, 609200868210, 2512267906200, 10342848445020, 42516521451690, 174535009040574, 715599131576976, 2930673247541900]