Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 12 |
3 | 38 |
4 | 130 |
5 | 462 |
6 | 1680 |
7 | 6204 |
8 | 23166 |
9 | 87230 |
10 | 330616 |
11 | 1259700 |
12 | 4820452 |
13 | 18513068 |
14 | 71318400 |
15 | 275467320 |
16 | 1066432950 |
17 | 4136847390 |
18 | 16075953960 |
19 | 62570669700 |
20 | 243882320220 |
21 | 951797460900 |
22 | 3718872587040 |
23 | 14545727618760 |
[1,5,12,38,130,462,1680,6204,23166,87230,330616, 1259700,4820452,18513068,71318400,275467320, 1066432950,4136847390,16075953960,62570669700, 243882320220,951797460900,3718872587040, 14545727618760] |