n | a(n) |
---|---|
2 | 7 |
3 | 52 |
4 | 231 |
5 | 806 |
6 | 2451 |
7 | 6840 |
8 | 18031 |
9 | 45682 |
10 | 112443 |
11 | 270788 |
12 | 641031 |
13 | 1496574 |
14 | 3453859 |
15 | 7893232 |
16 | 17886687 |
17 | 40233578 |
18 | 89908875 |
19 | 199746108 |
20 | 441441655 |
21 | 970971190 |
22 | 2126500467 |
23 | 4638886952 |
24 | 10083091791 |
25 | 21843918306 |
26 | 47177512411 |
27 | 101602798900 |
28 | 218238002151 |
29 | 467614538222 |
[7,52,231,806,2451,6840,18031,45682,112443,270788, 641031,1496574,3453859,7893232,17886687,40233578, 89908875,199746108,441441655,970971190,2126500467, 4638886952,10083091791,21843918306,47177512411, 101602798900,218238002151,467614538222] |