n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 33 |
5 | 127 |
6 | 486 |
7 | 1943 |
8 | 8052 |
9 | 33504 |
10 | 143203 |
11 | 618615 |
12 | 2696818 |
13 | 11919409 |
14 | 52965105 |
15 | 237386849 |
16 | 1071312485 |
17 | 4857376568 |
18 | 22160738643 |
19 | 101518175550 |
20 | 467022106982 |
21 | 2157328576831 |
22 | 9996509638302 |
23 | 46480743976377 |
24 | 216739174880976 |
25 | 1013326106030851 |
26 | 4750067786683020 |
27 | 22315803215975305 |
[1,1,3,10,33,127,486,1943,8052,33504,143203, 618615,2696818,11919409,52965105,237386849, 1071312485,4857376568,22160738643,101518175550, 467022106982,2157328576831,9996509638302, 46480743976377,216739174880976,1013326106030851, 4750067786683020,22315803215975305] |