n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 22 |
4 | 178 |
5 | 1570 |
6 | 18808 |
7 | 230980 |
8 | 3505468 |
9 | 57144700 |
10 | 1068295600 |
11 | 20546428360 |
12 | 461887088728 |
13 | 10502814172696 |
14 | 264754450444576 |
15 | 7060121052388720 |
16 | 204307337026984720 |
17 | 6046890989734627600 |
18 | 195299794016884735552 |
19 | 6449005971683059906144 |
20 | 228860773033625810367520 |
21 | 8414329938572105578573600 |
22 | 325809232939269347815692160 |
23 | 12955190762780437329737296960 |
24 | 547586316827523026196832913344 |
[1,1,4,22,178,1570,18808,230980,3505468,57144700, 1068295600,20546428360,461887088728, 10502814172696,264754450444576,7060121052388720, 204307337026984720,6046890989734627600, 195299794016884735552,6449005971683059906144, 228860773033625810367520, 8414329938572105578573600, 325809232939269347815692160, 12955190762780437329737296960, 547586316827523026196832913344] |