Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 12 |
4 | 27 |
5 | 105 |
6 | 420 |
7 | 1242 |
8 | 5295 |
9 | 22395 |
10 | 72738 |
11 | 323268 |
12 | 1410684 |
13 | 4806675 |
14 | 21881721 |
15 | 97371786 |
16 | 341608239 |
17 | 1579726122 |
18 | 7123796790 |
19 | 25489388367 |
20 | 119184247992 |
21 | 542664427242 |
22 | 1969440159591 |
23 | 9284827569117 |
24 | 42584603672868 |
25 | 156213604844883 |
26 | 741154831030785 |
[1,1,3,12,27,105,420,1242,5295,22395,72738,323268, 1410684,4806675,21881721,97371786,341608239, 1579726122,7123796790,25489388367,119184247992, 542664427242,1969440159591,9284827569117, 42584603672868,156213604844883,741154831030785] |