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.

A385985 a(0) = 1; a(n) = Sum_{k=0..n-1} (2^k + 1) * binomial(n-1,k) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 2
2 10
3 94
4 1514
5 40790
6 1862050
7 148965310
8 21742138970
9 5994070800710
10 3197362825740850
11 3348408098259631150
12 6941708283693589284650
13 28621208382355252313372150
14 235296246090820978083474438850
15 3862393961855717768080204865278750
16 126690441172711092666839985418516720250

List of values

[1, 2, 10, 94, 1514, 40790, 1862050, 148965310, 21742138970, 5994070800710, 3197362825740850, 3348408098259631150, 6941708283693589284650, 28621208382355252313372150, 235296246090820978083474438850, 3862393961855717768080204865278750, 126690441172711092666839985418516720250]