n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 19 |
5 | 61 |
6 | 224 |
7 | 771 |
8 | 2855 |
9 | 11005 |
10 | 41963 |
11 | 165661 |
12 | 664443 |
13 | 2674101 |
14 | 10955892 |
15 | 45281419 |
16 | 188288455 |
17 | 790957165 |
18 | 3343062477 |
19 | 14209485769 |
20 | 60792612875 |
21 | 261330644741 |
22 | 1128597807923 |
23 | 4896682653677 |
24 | 21327006074731 |
25 | 93233880458581 |
26 | 409028951228459 |
27 | 1800105977084221 |
28 | 7946053746358811 |
[1,1,2,7,19,61,224,771,2855,11005,41963,165661, 664443,2674101,10955892,45281419,188288455, 790957165,3343062477,14209485769,60792612875, 261330644741,1128597807923,4896682653677, 21327006074731,93233880458581,409028951228459, 1800105977084221,7946053746358811] |