Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 19 |
4 | 68 |
5 | 253 |
6 | 999 |
7 | 4031 |
8 | 16832 |
9 | 71234 |
10 | 308196 |
11 | 1345995 |
12 | 5968751 |
13 | 26654817 |
14 | 120354765 |
15 | 546416902 |
16 | 2501408653 |
17 | 11501092852 |
18 | 53220182665 |
19 | 247147799936 |
20 | 1153562089284 |
21 | 5400134575069 |
22 | 25383337549661 |
23 | 119610506437455 |
24 | 565526212187322 |
25 | 2679497291925914 |
26 | 12731304784452926 |
27 | 60601368754167970 |
[1,2,6,19,68,253,999,4031,16832,71234,308196, 1345995,5968751,26654817,120354765,546416902, 2501408653,11501092852,53220182665,247147799936, 1153562089284,5400134575069,25383337549661, 119610506437455,565526212187322,2679497291925914, 12731304784452926,60601368754167970] |