n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 12 |
5 | 62 |
6 | 206 |
7 | 1189 |
8 | 4949 |
9 | 31775 |
10 | 156972 |
11 | 1110280 |
12 | 6301550 |
13 | 48637701 |
14 | 310279615 |
15 | 2591820857 |
16 | 18293310174 |
17 | 164218811718 |
18 | 1267153412532 |
19 | 12152174863961 |
20 | 101557600812015 |
21 | 1035203191874931 |
22 | 9299499328238110 |
23 | 100314319611860936 |
24 | 962663031508255416 |
[0,1,1,5,12,62,206,1189,4949,31775,156972,1110280, 6301550,48637701,310279615,2591820857,18293310174, 164218811718,1267153412532,12152174863961, 101557600812015,1035203191874931,9299499328238110, 100314319611860936,962663031508255416] |