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.

A308418 Expansion of e.g.f. exp(x*(1 + 3*x + 6*x^2 + 3*x^3 + x^4)/(1 - x^2)^3).

Table of values

n a(n)
0 1
1 1
2 7
3 73
4 649
5 8821
6 122311
7 2064637
8 37933393
9 773276329
10 17257075111
11 414876953041
12 10780187135257
13 298418920103773
14 8812636845668839
15 275368711393020421
16 9091457478119636641
17 315782978460465185617
18 11511089733834178827463
19 439231563093877354663129

List of values

[1, 1, 7, 73, 649, 8821, 122311, 2064637, 37933393, 773276329, 17257075111, 414876953041, 10780187135257, 298418920103773, 8812636845668839, 275368711393020421, 9091457478119636641, 315782978460465185617, 11511089733834178827463, 439231563093877354663129]