n | a(n) |
---|---|
1 | 440 |
2 | 1592 |
3 | 5796 |
4 | 21152 |
5 | 77236 |
6 | 282384 |
7 | 1032952 |
8 | 3779018 |
9 | 13825712 |
10 | 50587924 |
11 | 185112244 |
12 | 677378582 |
13 | 2478738332 |
14 | 9070607046 |
15 | 33193012732 |
16 | 121467142552 |
17 | 444499919836 |
18 | 1626617553810 |
19 | 5952507849748 |
20 | 21782859518402 |
21 | 79713149293808 |
[440,1592,5796,21152,77236,282384,1032952,3779018, 13825712,50587924,185112244,677378582,2478738332, 9070607046,33193012732,121467142552,444499919836, 1626617553810,5952507849748,21782859518402, 79713149293808] |