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.

A245374 G.f.: Sum_{n>=0} x^n / ( (1+x)^(n+1) * (1 - 3*(n+1)*x) ).

Table of values

n a(n)
0 1
1 3
2 12
3 54
4 288
5 1782
6 12474
7 96714
8 819882
9 7536402
10 74610234
11 790692354
12 8921660922
13 106687646802
14 1346863560714
15 17890362862434
16 249297686894682
17 3634756665823602
18 55317506662094634
19 876911386062810114
20 14451743847813157242
21 247171758180997987602
22 4380263376360686471754

List of values

[1, 3, 12, 54, 288, 1782, 12474, 96714, 819882, 7536402, 74610234, 790692354, 8921660922, 106687646802, 1346863560714, 17890362862434, 249297686894682, 3634756665823602, 55317506662094634, 876911386062810114, 14451743847813157242, 247171758180997987602, 4380263376360686471754]