n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 29 |
4 | 348 |
5 | 7078 |
6 | 257400 |
7 | 17567085 |
8 | 2321150956 |
9 | 603642816242 |
10 | 311497277686152 |
11 | 320223587003352866 |
12 | 657101019781977963480 |
13 | 2694116441965648648689708 |
14 | 22080982977564915182409980400 |
[1,1,4,29,348,7078,257400,17567085,2321150956, 603642816242,311497277686152,320223587003352866, 657101019781977963480,2694116441965648648689708, 22080982977564915182409980400] |