n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 49 |
4 | 246 |
5 | 1157 |
6 | 5248 |
7 | 23256 |
8 | 101398 |
9 | 436865 |
10 | 1865136 |
11 | 7906054 |
12 | 33319388 |
13 | 139754994 |
14 | 583859968 |
15 | 2430991670 |
16 | 10092510630 |
17 | 41794856985 |
18 | 172699266480 |
19 | 712220712390 |
20 | 2932169392020 |
21 | 12052941519030 |
22 | 49475929052160 |
23 | 202838118604680 |
[1,1,8,49,246,1157,5248,23256,101398,436865, 1865136,7906054,33319388,139754994,583859968, 2430991670,10092510630,41794856985,172699266480, 712220712390,2932169392020,12052941519030, 49475929052160,202838118604680] |