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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.

A240526 a(n) = 2^(n-2)*(2^(n+4)-(-1)^n+13).

Table of values

n a(n)
0 7
1 23
2 76
3 284
4 1072
5 4208
6 16576
7 65984
8 262912
9 1050368
10 4197376
11 16784384
12 67121152
13 268464128
14 1073790976
15 4295081984
16 17180065792
17 68719935488
18 274878693376
19 1099513462784
20 4398049656832
21 17592193384448
22 70368756760576
23 281475006070784
24 1125899957174272

List of values

[7, 23, 76, 284, 1072, 4208, 16576, 65984, 262912, 1050368, 4197376, 16784384, 67121152, 268464128, 1073790976, 4295081984, 17180065792, 68719935488, 274878693376, 1099513462784, 4398049656832, 17592193384448, 70368756760576, 281475006070784, 1125899957174272]

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

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