n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 22 |
3 | 144 |
4 | 1074 |
5 | 8904 |
6 | 80676 |
7 | 789408 |
8 | 8267436 |
9 | 92024496 |
10 | 1082549736 |
11 | 13396319424 |
12 | 173709100152 |
13 | 2352429994464 |
14 | 33175988457264 |
15 | 486025859896704 |
16 | 7380209439505296 |
17 | 115932434008477248 |
[1,4,22,144,1074,8904,80676,789408,8267436, 92024496,1082549736,13396319424,173709100152, 2352429994464,33175988457264,486025859896704, 7380209439505296,115932434008477248] |