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.

A334162 a(0) = 1; thereafter a(n) = exp(-1/n) * Sum_{k>=0} (n*k + 1)^n / (n^k * k!).

Table of values

n a(n)
0 1
1 2
2 6
3 35
4 352
5 5307
6 111592
7 3117900
8 111259904
9 4912490375
10 261954304224
11 16560019685937
12 1222893826048000
13 104189533522270666
14 10132262911996769408
15 1114216450970154278543
16 137427598621356912082944
17 18877351974681584403701519
18 2869969478954093766868948480

List of values

[1, 2, 6, 35, 352, 5307, 111592, 3117900, 111259904, 4912490375, 261954304224, 16560019685937, 1222893826048000, 104189533522270666, 10132262911996769408, 1114216450970154278543, 137427598621356912082944, 18877351974681584403701519, 2869969478954093766868948480]