n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 16 |
4 | 241 |
5 | 3936 |
6 | 71569 |
7 | 1452032 |
8 | 32724801 |
9 | 814205440 |
10 | 22221533401 |
11 | 661258764288 |
12 | 21336094568881 |
13 | 742703018860544 |
14 | 27764596902369825 |
15 | 1110071630916222976 |
16 | 47289995917566900481 |
17 | 2139290897163297619968 |
18 | 102449006445196880700841 |
19 | 5179102933596854288384000 |
20 | 275667346790825720172556401 |
[0,0,1,16,241,3936,71569,1452032,32724801, 814205440,22221533401,661258764288,21336094568881, 742703018860544,27764596902369825, 1110071630916222976,47289995917566900481, 2139290897163297619968,102449006445196880700841, 5179102933596854288384000, 275667346790825720172556401] |