n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 15 |
5 | 17 |
6 | 239 |
7 | 273 |
8 | 3823 |
9 | 4369 |
10 | 61167 |
11 | 69905 |
12 | 978671 |
13 | 1118481 |
14 | 15658735 |
15 | 17895697 |
16 | 250539759 |
17 | 286331153 |
18 | 4008636143 |
19 | 4581298449 |
20 | 64138178287 |
21 | 73300775185 |
22 | 1026210852591 |
23 | 1172812402961 |
24 | 16419373641455 |
25 | 18764998447377 |
[0,0,1,1,15,17,239,273,3823,4369,61167,69905, 978671,1118481,15658735,17895697,250539759, 286331153,4008636143,4581298449,64138178287, 73300775185,1026210852591,1172812402961, 16419373641455,18764998447377] |