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.

A066593 Primes which can be expressed as concatenation of powers of 2 and 0's.

Table of values

n a(n)
1 2
2 11
3 41
4 101
5 181
6 211
7 241
8 281
9 401
10 421
11 641
12 811
13 821
14 881
15 1021
16 1181
17 1201
18 1321
19 1481
20 1601
21 1621
22 1801
23 1811
24 2011
25 2081
26 2111
27 2141
28 2161
29 2221
30 2281
31 2411
32 2441
33 2801
34 3221
35 4001
36 4021
37 4111
38 4201
39 4211
40 4241
41 4421
42 4441
43 4481

List of values

[2, 11, 41, 101, 181, 211, 241, 281, 401, 421, 641, 811, 821, 881, 1021, 1181, 1201, 1321, 1481, 1601, 1621, 1801, 1811, 2011, 2081, 2111, 2141, 2161, 2221, 2281, 2411, 2441, 2801, 3221, 4001, 4021, 4111, 4201, 4211, 4241, 4421, 4441, 4481]