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.

A026150 a(0) = a(1) = 1; a(n+2) = 2*a(n+1) + 2*a(n).

Table of values

n a(n)
0 1
1 1
2 4
3 10
4 28
5 76
6 208
7 568
8 1552
9 4240
10 11584
11 31648
12 86464
13 236224
14 645376
15 1763200
16 4817152
17 13160704
18 35955712
19 98232832
20 268377088
21 733219840
22 2003193856
23 5472827392
24 14952042496
25 40849739776

List of values

[1, 1, 4, 10, 28, 76, 208, 568, 1552, 4240, 11584, 31648, 86464, 236224, 645376, 1763200, 4817152, 13160704, 35955712, 98232832, 268377088, 733219840, 2003193856, 5472827392, 14952042496, 40849739776]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.