n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 5 |
4 | 15 |
5 | 57 |
6 | 181 |
7 | 632 |
8 | 2199 |
9 | 7593 |
10 | 26706 |
11 | 93724 |
12 | 330555 |
13 | 1170088 |
14 | 4149361 |
15 | 14754670 |
16 | 52564714 |
17 | 187595025 |
18 | 670589799 |
19 | 2400467901 |
20 | 8603906865 |
21 | 30874479617 |
22 | 110907636467 |
23 | 398789645747 |
24 | 1435195800184 |
25 | 5169318396770 |
26 | 18633022691923 |
27 | 67210498566801 |
28 | 242590233305619 |
29 | 876138147816208 |
30 | 3166048659124955 |
31 | 11447024096561941 |
32 | 41407915745717488 |
[0,2,5,15,57,181,632,2199,7593,26706,93724,330555, 1170088,4149361,14754670,52564714,187595025, 670589799,2400467901,8603906865,30874479617, 110907636467,398789645747,1435195800184, 5169318396770,18633022691923,67210498566801, 242590233305619,876138147816208,3166048659124955, 11447024096561941,41407915745717488] |