n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 10 |
4 | 63 |
5 | 365 |
6 | 2110 |
7 | 12521 |
8 | 77133 |
9 | 495408 |
10 | 3321545 |
11 | 23241681 |
12 | 169563944 |
13 | 1288195931 |
14 | 10176462413 |
15 | 83473288546 |
16 | 709925146315 |
17 | 6251616698625 |
18 | 56926598141054 |
19 | 535352734428349 |
20 | 5193455071192121 |
21 | 51913950093082800 |
22 | 534160387907563869 |
23 | 5651905462025615573 |
[0,1,10,63,365,2110,12521,77133,495408,3321545, 23241681,169563944,1288195931,10176462413, 83473288546,709925146315,6251616698625, 56926598141054,535352734428349,5193455071192121, 51913950093082800,534160387907563869, 5651905462025615573] |