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.

A046260 Largest palindromic substring in 2^n.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 6
5 3
6 6
7 8
8 6
9 5
10 4
11 8
12 9
13 9
14 8
15 8
16 55
17 131
18 262
19 242
20 8
21 9
22 9
23 838
24 777
25 55
26 88
27 77
28 545
29 9
30 737
31 474
32 949
33 858
34 717
35 383
36 767
37 9
38 77
39 888
40 777
41 255552
42 111
43 222
44 444
45 888
46 77
47 3553
48 767
49 21312
50 42624
51 99
52 737
53 474
54 9
55 797
56 575
57 8558
58 7117
59 646
60 606
61 939

List of values

[1, 2, 4, 8, 6, 3, 6, 8, 6, 5, 4, 8, 9, 9, 8, 8, 55, 131, 262, 242, 8, 9, 9, 838, 777, 55, 88, 77, 545, 9, 737, 474, 949, 858, 717, 383, 767, 9, 77, 888, 777, 255552, 111, 222, 444, 888, 77, 3553, 767, 21312, 42624, 99, 737, 474, 9, 797, 575, 8558, 7117, 646, 606, 939]