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.

A383776 a(n) = (11*n + 3 + 6/(n+2)) * Catalan(n).

Table of values

n a(n)
0 6
1 16
2 53
3 186
4 672
5 2472
6 9207
7 34606
8 130988
9 498576
10 1906346
11 7316596
12 28170768
13 108760560
14 420889995
15 1632155670
16 6340808820
17 24673450560
18 96148670310
19 375164728620
20 1465589068320
21 5731488987120
22 22436098732710
23 87905595401676
24 344702077523352
25 1352701532137312
26 5312100899224532
27 20874451526714856

List of values

[6, 16, 53, 186, 672, 2472, 9207, 34606, 130988, 498576, 1906346, 7316596, 28170768, 108760560, 420889995, 1632155670, 6340808820, 24673450560, 96148670310, 375164728620, 1465589068320, 5731488987120, 22436098732710, 87905595401676, 344702077523352, 1352701532137312, 5312100899224532, 20874451526714856]