n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 31 |
5 | 231 |
6 | 2347 |
7 | 29638 |
8 | 449693 |
9 | 7976253 |
10 | 162204059 |
11 | 3722558272 |
12 | 95221978299 |
13 | 2687309507102 |
14 | 82967647793153 |
15 | 2782190523572392 |
16 | 100715040802229833 |
17 | 3914979746952224303 |
18 | 162662679830709439637 |
19 | 7194483479557973730982 |
20 | 337519906320930133470189 |
[1,1,2,6,31,231,2347,29638,449693,7976253, 162204059,3722558272,95221978299,2687309507102, 82967647793153,2782190523572392, 100715040802229833,3914979746952224303, 162662679830709439637,7194483479557973730982, 337519906320930133470189] |