n | a(n) |
---|---|
1 | 0 |
2 | 21 |
3 | 536 |
4 | 12177 |
5 | 296912 |
6 | 7115200 |
7 | 170234678 |
8 | 4073986651 |
9 | 97465620298 |
10 | 2331545530294 |
11 | 55772599075464 |
12 | 1334104002498388 |
13 | 31912076109370226 |
14 | 763341593404141513 |
15 | 18259216025036326102 |
16 | 436762191877943225707 |
[0,21,536,12177,296912,7115200,170234678, 4073986651,97465620298,2331545530294, 55772599075464,1334104002498388,31912076109370226, 763341593404141513,18259216025036326102, 436762191877943225707] |