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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.

A046262 Largest palindromic substring in 4^n.

Table of values

n a(n)
0 1
1 4
2 6
3 6
4 6
5 4
6 9
7 8
8 55
9 262
10 8
11 9
12 777
13 88
14 545
15 737
16 949
17 717
18 767
19 77
20 777
21 111
22 444
23 77
24 767
25 42624
26 737
27 9
28 575
29 7117
30 606
31 6116
32 737
33 838
34 52825
35 717
36 828
37 58085
38 914323419
39 676
40 747
41 585
42 3113
43 737
44 9
45 4224
46 959
47 838
48 33
49 5005
50 22822
51 12821
52 282

List of values

[1, 4, 6, 6, 6, 4, 9, 8, 55, 262, 8, 9, 777, 88, 545, 737, 949, 717, 767, 77, 777, 111, 444, 77, 767, 42624, 737, 9, 575, 7117, 606, 6116, 737, 838, 52825, 717, 828, 58085, 914323419, 676, 747, 585, 3113, 737, 9, 4224, 959, 838, 33, 5005, 22822, 12821, 282]

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

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