n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 10 |
6 | 25 |
7 | 56 |
8 | 139 |
9 | 338 |
10 | 852 |
11 | 2145 |
12 | 5513 |
13 | 14196 |
14 | 36962 |
15 | 96641 |
16 | 254279 |
17 | 671640 |
18 | 1781840 |
19 | 4742295 |
20 | 12662282 |
21 | 33898923 |
22 | 90981264 |
23 | 244720490 |
24 | 659591378 |
25 | 1781048728 |
26 | 4817420360 |
27 | 13050525328 |
28 | 35405239155 |
29 | 96180222540 |
30 | 261603173201 |
31 | 712364210543 |
[0,1,2,5,10,25,56,139,338,852,2145,5513,14196, 36962,96641,254279,671640,1781840,4742295, 12662282,33898923,90981264,244720490,659591378, 1781048728,4817420360,13050525328,35405239155, 96180222540,261603173201,712364210543] |