Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 67 |
5 | 376 |
6 | 2211 |
7 | 13378 |
8 | 82499 |
9 | 515659 |
10 | 3255628 |
11 | 20714354 |
12 | 132611491 |
13 | 853226921 |
14 | 5512508382 |
15 | 35739673513 |
16 | 232405291587 |
17 | 1515159860388 |
18 | 9900216370689 |
19 | 64816750480666 |
20 | 425097621975692 |
21 | 2792332673312356 |
22 | 18367642416256334 |
23 | 120972943783673953 |
[0,1,3,13,67,376,2211,13378,82499,515659,3255628, 20714354,132611491,853226921,5512508382, 35739673513,232405291587,1515159860388, 9900216370689,64816750480666,425097621975692, 2792332673312356,18367642416256334, 120972943783673953] |