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 | 7 |
4 | 19 |
5 | 60 |
6 | 185 |
7 | 555 |
8 | 1841 |
9 | 5956 |
10 | 19505 |
11 | 66820 |
12 | 225634 |
13 | 756816 |
14 | 2642845 |
15 | 9115115 |
16 | 31500557 |
17 | 111381604 |
18 | 390731927 |
19 | 1366403748 |
20 | 4883389422 |
21 | 17318135888 |
22 | 61435889157 |
23 | 221076079788 |
24 | 791460173438 |
25 | 2827876747472 |
26 | 10242954731014 |
27 | 36908672701072 |
28 | 132984499210420 |
29 | 483857249063680 |
30 | 1754050251660429 |
[1,1,3,7,19,60,185,555,1841,5956,19505,66820, 225634,756816,2642845,9115115,31500557,111381604, 390731927,1366403748,4883389422,17318135888, 61435889157,221076079788,791460173438, 2827876747472,10242954731014,36908672701072, 132984499210420,483857249063680,1754050251660429] |