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.

A007566 a(n+1) = (2n+3)*a(n) - 2n*a(n-1) + 8n, a(0) = 1, a(1) = 3.

Table of values

n a(n)
0 1
1 3
2 21
3 151
4 1257
5 12651
6 151933
7 2127231
8 34035921
9 612646867
10 12252937701
11 269564629863
12 6469551117241
13 168208329048891
14 4709833213369677
15 141294996401091151
16 4521439884834917793
17 153728956084387206051
18 5534242419037939419061
19 210301211923441697925687

List of values

[1, 3, 21, 151, 1257, 12651, 151933, 2127231, 34035921, 612646867, 12252937701, 269564629863, 6469551117241, 168208329048891, 4709833213369677, 141294996401091151, 4521439884834917793, 153728956084387206051, 5534242419037939419061, 210301211923441697925687]