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.

A257418 Number of pieces after a sheet of paper is folded n times and cut diagonally.

Table of values

n a(n)
0 2
1 3
2 5
3 8
4 13
5 23
6 41
7 77
8 145
9 281
10 545
11 1073
12 2113
13 4193
14 8321
15 16577
16 33025
17 65921
18 131585
19 262913
20 525313
21 1050113
22 2099201
23 4197377
24 8392705
25 16783361
26 33562625
27 67121153
28 134234113
29 268460033
30 536903681
31 1073790977
32 2147549185
33 4295065601
34 8590065665

List of values

[2, 3, 5, 8, 13, 23, 41, 77, 145, 281, 545, 1073, 2113, 4193, 8321, 16577, 33025, 65921, 131585, 262913, 525313, 1050113, 2099201, 4197377, 8392705, 16783361, 33562625, 67121153, 134234113, 268460033, 536903681, 1073790977, 2147549185, 4295065601, 8590065665]