n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 12 |
4 | 31 |
5 | 89 |
6 | 230 |
7 | 536 |
8 | 1171 |
9 | 2439 |
10 | 4882 |
11 | 9470 |
12 | 17935 |
13 | 33331 |
14 | 60994 |
15 | 110208 |
16 | 197059 |
17 | 349285 |
18 | 614522 |
19 | 1074316 |
20 | 1867855 |
21 | 3232059 |
22 | 5569206 |
23 | 9560842 |
24 | 16359331 |
25 | 27909479 |
26 | 47487870 |
27 | 80606196 |
28 | 136522471 |
29 | 230766449 |
30 | 389355662 |
31 | 655827200 |
[1,6,12,31,89,230,536,1171,2439,4882,9470,17935, 33331,60994,110208,197059,349285,614522,1074316, 1867855,3232059,5569206,9560842,16359331,27909479, 47487870,80606196,136522471,230766449,389355662, 655827200] |