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.

A293077 Number of letters (0's and 1's) in the n-th iterate of the final-letter-removed mapping defined at A289035.

Table of values

n a(n)
1 2
2 4
3 6
4 10
5 16
6 26
7 44
8 74
9 126
10 214
11 364
12 620
13 1058
14 1806
15 3082
16 5260
17 8978
18 15326
19 26162
20 44660
21 76238
22 130146
23 222172
24 379270
25 647454
26 1105272
27 1886816
28 3220996
29 5498584
30 9386670
31 16024048
32 27354760
33 46697496
34 79717612
35 136086476

List of values

[2, 4, 6, 10, 16, 26, 44, 74, 126, 214, 364, 620, 1058, 1806, 3082, 5260, 8978, 15326, 26162, 44660, 76238, 130146, 222172, 379270, 647454, 1105272, 1886816, 3220996, 5498584, 9386670, 16024048, 27354760, 46697496, 79717612, 136086476]