Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 4 |
4 | 20 |
5 | 45 |
6 | 109 |
7 | 275 |
8 | 708 |
9 | 1765 |
10 | 4442 |
11 | 11196 |
12 | 28207 |
13 | 70985 |
14 | 178755 |
15 | 450130 |
16 | 1133423 |
17 | 2853888 |
18 | 7186144 |
19 | 18094709 |
20 | 45562353 |
21 | 114725755 |
22 | 288879164 |
23 | 727396569 |
24 | 1831581574 |
25 | 4611915224 |
26 | 11612784735 |
27 | 29240946181 |
28 | 73628587619 |
29 | 185396495082 |
[1,2,3,4,20,45,109,275,708,1765,4442,11196,28207, 70985,178755,450130,1133423,2853888,7186144, 18094709,45562353,114725755,288879164,727396569, 1831581574,4611915224,11612784735,29240946181, 73628587619,185396495082] |