n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 128 |
7 | 390 |
8 | 1184 |
9 | 3582 |
10 | 10808 |
11 | 32550 |
12 | 97904 |
13 | 294222 |
14 | 883688 |
15 | 2653110 |
16 | 7963424 |
17 | 23898462 |
18 | 71711768 |
19 | 215168070 |
20 | 645569744 |
21 | 1936840302 |
22 | 5810783048 |
23 | 17432873430 |
24 | 52299668864 |
25 | 156901103742 |
26 | 470707505528 |
27 | 1412130905190 |
28 | 4236409492784 |
29 | 12709262032782 |
30 | 38127853207208 |
[1,1,2,5,14,42,128,390,1184,3582,10808,32550, 97904,294222,883688,2653110,7963424,23898462, 71711768,215168070,645569744,1936840302, 5810783048,17432873430,52299668864,156901103742, 470707505528,1412130905190,4236409492784, 12709262032782,38127853207208] |