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.

A244756 a(n) = Sum_{k=0..n} C(n,k) * (2 + 3^k)^(n-k).

Table of values

n a(n)
0 1
1 4
2 20
3 136
4 1424
5 25504
6 831680
7 49526656
8 5359464704
9 1033951896064
10 354410768092160
11 213011725510260736
12 224795751647646224384
13 412813583857427719266304
14 1323683536183041967893954560
15 7361415226356149639592083685376
16 71294465534894253722438522191806464

List of values

[1, 4, 20, 136, 1424, 25504, 831680, 49526656, 5359464704, 1033951896064, 354410768092160, 213011725510260736, 224795751647646224384, 412813583857427719266304, 1323683536183041967893954560, 7361415226356149639592083685376, 71294465534894253722438522191806464]