n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 130 |
7 | 415 |
8 | 1368 |
9 | 4603 |
10 | 15788 |
11 | 54863 |
12 | 193112 |
13 | 686049 |
14 | 2459942 |
15 | 8881931 |
16 | 32292148 |
17 | 118038070 |
18 | 433790834 |
19 | 1601042055 |
20 | 5934546466 |
21 | 22074679425 |
22 | 82399006636 |
23 | 308471888767 |
24 | 1158175006638 |
25 | 4359154749776 |
26 | 16447468190380 |
27 | 62188658733901 |
[1,1,2,5,14,42,130,415,1368,4603,15788,54863, 193112,686049,2459942,8881931,32292148,118038070, 433790834,1601042055,5934546466,22074679425, 82399006636,308471888767,1158175006638, 4359154749776,16447468190380,62188658733901] |