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.

A196795 a(n) = Sum_{k=0..n} binomial(n,k)*3^k*(k+1)^(n-k).

Table of values

n a(n)
0 1
1 4
2 22
3 145
4 1096
5 9259
6 85924
7 865183
8 9364864
9 108173827
10 1325589676
11 17149360111
12 233271228880
13 3324545097475
14 49493784653644
15 767665750130839
16 12376226335249024
17 206967901014192643
18 3583561993192959436
19 64136093489935863583
20 1184711492540805987856

List of values

[1, 4, 22, 145, 1096, 9259, 85924, 865183, 9364864, 108173827, 1325589676, 17149360111, 233271228880, 3324545097475, 49493784653644, 767665750130839, 12376226335249024, 206967901014192643, 3583561993192959436, 64136093489935863583, 1184711492540805987856]