n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 7 |
5 | 21 |
6 | 141 |
7 | 743 |
8 | 5699 |
9 | 42241 |
10 | 382153 |
11 | 3586155 |
12 | 38075247 |
13 | 428102117 |
14 | 5257446533 |
15 | 68571316063 |
16 | 959218642651 |
17 | 14208251423433 |
18 | 223310418094785 |
19 | 3699854395380371 |
20 | 64579372322979335 |
21 | 1182959813115161773 |
22 | 22708472725269799933 |
23 | 455643187943171348103 |
[1,0,1,1,7,21,141,743,5699,42241,382153,3586155, 38075247,428102117,5257446533,68571316063, 959218642651,14208251423433,223310418094785, 3699854395380371,64579372322979335, 1182959813115161773,22708472725269799933, 455643187943171348103] |