n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 44 |
3 | 652 |
4 | 11636 |
5 | 242816 |
6 | 5896200 |
7 | 166988876 |
8 | 5522663076 |
9 | 212691519520 |
10 | 9480072152976 |
11 | 485032014072352 |
12 | 28212945137704000 |
13 | 1845697627092687232 |
14 | 134276285717364346136 |
15 | 10746808538882581859580 |
[1,4,44,652,11636,242816,5896200,166988876, 5522663076,212691519520,9480072152976, 485032014072352,28212945137704000, 1845697627092687232,134276285717364346136, 10746808538882581859580] |