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.

A383913 Expansion of (1+x) * (1+2*x) * (1+3*x)/((1-x) * (1-2*x) * (1-3*x) * (1-4*x)).

Table of values

n a(n)
0 1
1 16
2 136
3 856
4 4576
5 22216
6 101536
7 446056
8 1907776
9 8009416
10 33187936
11 136233256
12 555438976
13 2253396616
14 9108754336
15 36721012456
16 147743018176
17 593550943816
18 2381944320736
19 9551006783656
20 38273731365376
21 153304069611016
22 613843773807136
23 2457257707146856

List of values

[1, 16, 136, 856, 4576, 22216, 101536, 446056, 1907776, 8009416, 33187936, 136233256, 555438976, 2253396616, 9108754336, 36721012456, 147743018176, 593550943816, 2381944320736, 9551006783656, 38273731365376, 153304069611016, 613843773807136, 2457257707146856]