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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.

A179238 Numerators in convergents to infinitely repeating period 3 palindromic continued fraction [1,2,1,...].

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 13
6 18
7 31
8 80
9 111
10 191
11 493
12 684
13 1177
14 3038
15 4215
16 7253
17 18721
18 25974
19 44695
20 115364
21 160059
22 275423
23 710905
24 986328
25 1697233
26 4380794
27 6078027
28 10458821
29 26995669
30 37454490
31 64450159
32 166354808
33 230804967
34 397159775

List of values

[1, 2, 3, 5, 13, 18, 31, 80, 111, 191, 493, 684, 1177, 3038, 4215, 7253, 18721, 25974, 44695, 115364, 160059, 275423, 710905, 986328, 1697233, 4380794, 6078027, 10458821, 26995669, 37454490, 64450159, 166354808, 230804967, 397159775]

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

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