n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 10 |
3 | 52 |
4 | 278 |
5 | 1510 |
6 | 8288 |
7 | 45834 |
8 | 254922 |
9 | 1424252 |
10 | 7986550 |
11 | 44921582 |
12 | 253320352 |
13 | 1431678194 |
14 | 8106897418 |
15 | 45982821860 |
16 | 261206625526 |
17 | 1485765938390 |
18 | 8461264982176 |
19 | 48237937154554 |
20 | 275275548126890 |
21 | 1572297656021292 |
22 | 8987888015996790 |
23 | 51417128080562142 |
[0,2,10,52,278,1510,8288,45834,254922,1424252, 7986550,44921582,253320352,1431678194,8106897418, 45982821860,261206625526,1485765938390, 8461264982176,48237937154554,275275548126890, 1572297656021292,8987888015996790, 51417128080562142] |