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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.

A259713 a(n) = 3*2^n - 2*(-1)^n.

Table of values

n a(n)
0 1
1 8
2 10
3 26
4 46
5 98
6 190
7 386
8 766
9 1538
10 3070
11 6146
12 12286
13 24578
14 49150
15 98306
16 196606
17 393218
18 786430
19 1572866
20 3145726
21 6291458
22 12582910
23 25165826
24 50331646
25 100663298
26 201326590
27 402653186
28 805306366
29 1610612738
30 3221225470
31 6442450946
32 12884901886

List of values

[1, 8, 10, 26, 46, 98, 190, 386, 766, 1538, 3070, 6146, 12286, 24578, 49150, 98306, 196606, 393218, 786430, 1572866, 3145726, 6291458, 12582910, 25165826, 50331646, 100663298, 201326590, 402653186, 805306366, 1610612738, 3221225470, 6442450946, 12884901886]

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

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