n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 16 |
5 | 45 |
6 | 154 |
7 | 499 |
8 | 1634 |
9 | 5888 |
10 | 20756 |
11 | 73719 |
12 | 274261 |
13 | 1014619 |
14 | 3778927 |
15 | 14390276 |
16 | 54958618 |
17 | 210937648 |
18 | 818267680 |
19 | 3195429278 |
20 | 12519044949 |
21 | 49315252155 |
22 | 195701199479 |
23 | 778376463382 |
24 | 3105865907871 |
25 | 12473983517469 |
26 | 50198995811018 |
27 | 202462882953762 |
28 | 820779222155122 |
29 | 3334412574772313 |
[1,1,2,6,16,45,154,499,1634,5888,20756,73719, 274261,1014619,3778927,14390276,54958618, 210937648,818267680,3195429278,12519044949, 49315252155,195701199479,778376463382, 3105865907871,12473983517469,50198995811018, 202462882953762,820779222155122,3334412574772313] |