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.

A265267 E.g.f.: exp(-2) * Sum_{n>=0} 2^n * (1+x)^(n^2) / n!.

Table of values

n a(n)
0 1
1 6
2 88
3 2160
4 76336
5 3594112
6 214575872
7 15695861760
8 1371486918144
9 140382841170944
10 16572993648603136
11 2228162239340027904
12 337576082591565651968
13 57121976918741964259328
14 10713284121614206013898752
15 2212342319434677836830015488
16 500118162321472987555560620032
17 123128345425943590420826294059008
18 32864579386892803455158341264736256

List of values

[1, 6, 88, 2160, 76336, 3594112, 214575872, 15695861760, 1371486918144, 140382841170944, 16572993648603136, 2228162239340027904, 337576082591565651968, 57121976918741964259328, 10713284121614206013898752, 2212342319434677836830015488, 500118162321472987555560620032, 123128345425943590420826294059008, 32864579386892803455158341264736256]