n | a(n) |
---|---|
0 | 1 |
1 | 13 |
2 | 91 |
3 | 455 |
4 | 1820 |
5 | 6188 |
6 | 18564 |
7 | 50388 |
8 | 125970 |
9 | 293930 |
10 | 646646 |
11 | 1352078 |
12 | 2704156 |
13 | 5200299 |
14 | 9657687 |
15 | 17383769 |
16 | 30421300 |
17 | 51894115 |
18 | 86487037 |
19 | 141101961 |
20 | 225742452 |
21 | 354691350 |
22 | 548060110 |
23 | 833805154 |
24 | 1250325622 |
25 | 1849778840 |
26 | 2702274848 |
27 | 3901139736 |
28 | 5569469620 |
[1,13,91,455,1820,6188,18564,50388,125970,293930, 646646,1352078,2704156,5200299,9657687,17383769, 30421300,51894115,86487037,141101961,225742452, 354691350,548060110,833805154,1250325622, 1849778840,2702274848,3901139736,5569469620] |