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.

A086662 Stirling transform of Catalan numbers: Sum_{k=0..n} |Stirling1(n,k)|*C(2*k,k)/(k+1).

Table of values

n a(n)
0 1
1 1
2 3
3 13
4 72
5 481
6 3745
7 33209
8 329868
9 3624270
10 43608474
11 570008803
12 8039735704
13 121673027607
14 1966231022067
15 33786076421499
16 615043147866660
17 11822938288619344
18 239298079351004608
19 5086498410027323134
20 113278368771499790136
21 2637549737582063583274
22 64082443707327038140602
23 1621782672366231029685407

List of values

[1, 1, 3, 13, 72, 481, 3745, 33209, 329868, 3624270, 43608474, 570008803, 8039735704, 121673027607, 1966231022067, 33786076421499, 615043147866660, 11822938288619344, 239298079351004608, 5086498410027323134, 113278368771499790136, 2637549737582063583274, 64082443707327038140602, 1621782672366231029685407]