n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 25 |
5 | 77 |
6 | 258 |
7 | 859 |
8 | 2951 |
9 | 10083 |
10 | 35463 |
11 | 124321 |
12 | 440777 |
13 | 1564412 |
14 | 5613436 |
15 | 20126465 |
16 | 72600868 |
17 | 262274477 |
18 | 952091511 |
19 | 3458207202 |
20 | 12605564464 |
21 | 46002034866 |
22 | 168328851812 |
23 | 616532841066 |
24 | 2262999692234 |
25 | 8314445493372 |
26 | 30601371089696 |
27 | 112732187972575 |
28 | 415875293473076 |
29 | 1535492331618463 |
[1,1,3,8,25,77,258,859,2951,10083,35463,124321, 440777,1564412,5613436,20126465,72600868, 262274477,952091511,3458207202,12605564464, 46002034866,168328851812,616532841066, 2262999692234,8314445493372,30601371089696, 112732187972575,415875293473076,1535492331618463] |