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.

A260677 a(n) = number of decimal digits in the n-th odd Catalan number A038003(n).

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 7
5 17
6 35
7 74
8 150
9 304
10 612
11 1228
12 2460
13 4926
14 9857
15 19721
16 39449
17 78905
18 157818
19 315644
20 631296
21 1262601
22 2525212
23 5050435
24 10100879
25 20201769
26 40403550
27 80807112
28 161614235
29 323228483
30 646456979
31 1292913972
32 2585827958
33 5171655931
34 10343311876

List of values

[1, 1, 1, 3, 7, 17, 35, 74, 150, 304, 612, 1228, 2460, 4926, 9857, 19721, 39449, 78905, 157818, 315644, 631296, 1262601, 2525212, 5050435, 10100879, 20201769, 40403550, 80807112, 161614235, 323228483, 646456979, 1292913972, 2585827958, 5171655931, 10343311876]