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.

A083337 a(n) = 2*a(n-1) + 2*a(n-2); a(0)=0, a(1)=3.

Table of values

n a(n)
0 0
1 3
2 6
3 18
4 48
5 132
6 360
7 984
8 2688
9 7344
10 20064
11 54816
12 149760
13 409152
14 1117824
15 3053952
16 8343552
17 22795008
18 62277120
19 170144256
20 464842752
21 1269974016
22 3469633536
23 9479215104
24 25897697280
25 70753824768
26 193303044096
27 528113737728
28 1442833563648
29 3941894602752
30 10769456332800

List of values

[0, 3, 6, 18, 48, 132, 360, 984, 2688, 7344, 20064, 54816, 149760, 409152, 1117824, 3053952, 8343552, 22795008, 62277120, 170144256, 464842752, 1269974016, 3469633536, 9479215104, 25897697280, 70753824768, 193303044096, 528113737728, 1442833563648, 3941894602752, 10769456332800]