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.

A258903 E.g.f.: 2 - exp(2) + Sum_{n>=1} 2^n * exp(3*x^n) / n!.

Table of values

n a(n)
0 1
1 6
2 30
3 78
4 426
5 582
6 12450
7 4758
8 407010
9 2218182
10 19172370
11 360438
12 4755166050
13 3213222
14 85631151090
15 5099958831318
16 54483404779650
17 258673542
18 11939347971403410
19 2326095798
20 5556296851712151330
21 35398724239897109862
22 10235928407592878130
23 188311523478
24 758680053859872239555010

List of values

[1, 6, 30, 78, 426, 582, 12450, 4758, 407010, 2218182, 19172370, 360438, 4755166050, 3213222, 85631151090, 5099958831318, 54483404779650, 258673542, 11939347971403410, 2326095798, 5556296851712151330, 35398724239897109862, 10235928407592878130, 188311523478, 758680053859872239555010]