n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 10 |
4 | 57 |
5 | 234 |
6 | 770 |
7 | 2136 |
8 | 5180 |
9 | 11292 |
10 | 22599 |
11 | 42190 |
12 | 74371 |
13 | 124950 |
14 | 201552 |
15 | 313964 |
16 | 474510 |
17 | 698456 |
18 | 1004445 |
19 | 1414962 |
20 | 1956829 |
21 | 2661730 |
22 | 3566766 |
23 | 4715040 |
24 | 6156272 |
25 | 7947444 |
26 | 10153475 |
27 | 12847926 |
28 | 16113735 |
29 | 20043982 |
30 | 24742684 |
31 | 30325620 |
[0,1,10,57,234,770,2136,5180,11292,22599,42190, 74371,124950,201552,313964,474510,698456,1004445, 1414962,1956829,2661730,3566766,4715040,6156272, 7947444,10153475,12847926,16113735,20043982, 24742684,30325620] |