n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 25 |
4 | 202 |
5 | 1966 |
6 | 22306 |
7 | 289969 |
8 | 4272934 |
9 | 70792318 |
10 | 1308702592 |
11 | 26791202362 |
12 | 602762346088 |
13 | 14795609964448 |
14 | 393567982759966 |
15 | 11276489767853569 |
16 | 346158428070229414 |
17 | 11331678979354212886 |
18 | 393967314482937530248 |
19 | 14495027742943618066030 |
20 | 562600190990455844759356 |
[1,1,4,25,202,1966,22306,289969,4272934,70792318, 1308702592,26791202362,602762346088, 14795609964448,393567982759966,11276489767853569, 346158428070229414,11331678979354212886, 393967314482937530248,14495027742943618066030, 562600190990455844759356] |