n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 27 |
7 | 74 |
8 | 226 |
9 | 710 |
10 | 2354 |
11 | 8010 |
12 | 28189 |
13 | 101094 |
14 | 370119 |
15 | 1375198 |
16 | 5181003 |
17 | 19740940 |
18 | 75990173 |
19 | 295100800 |
20 | 1155106357 |
21 | 4553312866 |
22 | 18063117153 |
23 | 72069297826 |
24 | 289053128879 |
25 | 1164870009786 |
26 | 4714970819402 |
27 | 19161572076550 |
28 | 78162885020942 |
29 | 319940035684684 |
30 | 1313799822309748 |
[0,1,2,4,10,27,74,226,710,2354,8010,28189,101094, 370119,1375198,5181003,19740940,75990173, 295100800,1155106357,4553312866,18063117153, 72069297826,289053128879,1164870009786, 4714970819402,19161572076550,78162885020942, 319940035684684,1313799822309748] |