n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 136 |
5 | 2405 |
6 | 6336 |
7 | 460663 |
8 | 13148416 |
9 | 347503689 |
10 | 3772979200 |
11 | 198133379411 |
12 | 7608426080256 |
13 | 281952316704253 |
14 | 4709633119830016 |
15 | 316248789972027375 |
16 | 16013842065532911616 |
17 | 776149319714627324177 |
[0,0,2,3,136,2405,6336,460663,13148416,347503689, 3772979200,198133379411,7608426080256, 281952316704253,4709633119830016, 316248789972027375,16013842065532911616, 776149319714627324177] |