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.

A006155 Expansion of e.g.f.: 1/(2-x-exp(x)).

Table of values

n a(n)
0 1
1 2
2 9
3 61
4 551
5 6221
6 84285
7 1332255
8 24066691
9 489100297
10 11044268633
11 274327080611
12 7433424980943
13 218208342366093
14 6898241919264181
15 233651576126946103
16 8441657595745501019
17 324052733365292875025
18 13171257161208184782225
19 565092918793429218839307

List of values

[1, 2, 9, 61, 551, 6221, 84285, 1332255, 24066691, 489100297, 11044268633, 274327080611, 7433424980943, 218208342366093, 6898241919264181, 233651576126946103, 8441657595745501019, 324052733365292875025, 13171257161208184782225, 565092918793429218839307]