n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 5 |
4 | 1 |
5 | 42 |
6 | 43 |
7 | 429 |
8 | 820 |
9 | 4861 |
10 | 12597 |
11 | 58598 |
12 | 177859 |
13 | 732825 |
14 | 2417416 |
15 | 9358677 |
16 | 32256553 |
17 | 120902914 |
18 | 426440955 |
19 | 1571649221 |
20 | 5610955132 |
21 | 20497829133 |
22 | 73645557469 |
23 | 267803779710 |
24 | 965384509651 |
25 | 3502058316337 |
26 | 12646311635088 |
27 | 45818284122149 |
[1,0,5,1,42,43,429,820,4861,12597,58598,177859, 732825,2417416,9358677,32256553,120902914, 426440955,1571649221,5610955132,20497829133, 73645557469,267803779710,965384509651, 3502058316337,12646311635088,45818284122149] |