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.

A386646 Expansion of e.g.f. Sum_{n>=0} (2^n + x)^n * x^n / n!.

Table of values

n a(n)
0 1
1 2
2 18
3 536
4 66316
5 33636832
6 68750980216
7 562995064353920
8 18446990378410477200
9 2417856827427983647531520
10 1267651025241922183470966470176
11 2658456127743272591813667810372278272
12 22300745369876426654206395965130496991176384
13 748288839162767087393170357241926671150780067340288

List of values

[1, 2, 18, 536, 66316, 33636832, 68750980216, 562995064353920, 18446990378410477200, 2417856827427983647531520, 1267651025241922183470966470176, 2658456127743272591813667810372278272, 22300745369876426654206395965130496991176384, 748288839162767087393170357241926671150780067340288]