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.

A225609 Recurrence a(n) = 2^n*a(n-1) + a(n-2) with a(0)=0, a(1)=1.

Table of values

n a(n)
0 0
1 1
2 4
3 33
4 532
5 17057
6 1092180
7 139816097
8 35794013012
9 18326674478241
10 18766550459731796
11 38433913668205196449
12 157425329151518944386900
13 1289628334843156860622681249
14 21129270795495611155960953970516
15 692363946716428521201685400328549537

List of values

[0, 1, 4, 33, 532, 17057, 1092180, 139816097, 35794013012, 18326674478241, 18766550459731796, 38433913668205196449, 157425329151518944386900, 1289628334843156860622681249, 21129270795495611155960953970516, 692363946716428521201685400328549537]