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.

A158829 Antidiagonal sums of square array A158825, in which row n lists the coefficients of the n-th iteration of x*C(x), where C(x) is the Catalan function (A000108).

Table of values

n a(n)
1 1
2 1
3 2
4 5
5 15
6 52
7 202
8 861
9 3972
10 19648
11 103500
12 577443
13 3396804
14 20988116
15 135770140
16 916936351
17 6449233093
18 47137434787
19 357331341987
20 2804582808108
21 22754919576652
22 190578011064394
23 1645490708244886
24 14629351150837605

List of values

[1, 1, 2, 5, 15, 52, 202, 861, 3972, 19648, 103500, 577443, 3396804, 20988116, 135770140, 916936351, 6449233093, 47137434787, 357331341987, 2804582808108, 22754919576652, 190578011064394, 1645490708244886, 14629351150837605]