n | a(n) |
---|---|
1 | 21 |
2 | 35 |
3 | 132 |
4 | 443 |
5 | 1803 |
6 | 7795 |
7 | 33860 |
8 | 148299 |
9 | 646838 |
10 | 2827081 |
11 | 12348295 |
12 | 53946658 |
13 | 235669276 |
14 | 1029543928 |
15 | 4497666250 |
16 | 19648472006 |
17 | 85836276153 |
18 | 374983965881 |
19 | 1638153628134 |
20 | 7156431645355 |
21 | 31263560215566 |
22 | 136577871103739 |
[21,35,132,443,1803,7795,33860,148299,646838, 2827081,12348295,53946658,235669276,1029543928, 4497666250,19648472006,85836276153,374983965881, 1638153628134,7156431645355,31263560215566, 136577871103739] |