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.

A384266 G.f. A(x) = (3*sqrt(1 - 8*x) - (1 - 4*x)) / (2*(1 - 8*x - 2*x^2)).

Table of values

n a(n)
0 1
1 4
2 22
3 136
4 892
5 6064
6 42232
7 299296
8 2149360
9 15596992
10 114138592
11 841108096
12 6234779584
13 46448349952
14 347541337984
15 2610319254016
16 19671552622336
17 148689857920000
18 1126905157115392
19 8561360256526336
20 65185363066289152
21 497307750242234368
22 3800975843189291008
23 29100188150365757440

List of values

[1, 4, 22, 136, 892, 6064, 42232, 299296, 2149360, 15596992, 114138592, 841108096, 6234779584, 46448349952, 347541337984, 2610319254016, 19671552622336, 148689857920000, 1126905157115392, 8561360256526336, 65185363066289152, 497307750242234368, 3800975843189291008, 29100188150365757440]