n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 34 |
4 | 277 |
5 | 3402 |
6 | 36170 |
7 | 407463 |
8 | 4491564 |
9 | 49926988 |
10 | 553211363 |
11 | 6137270812 |
12 | 68054635036 |
13 | 754774491429 |
14 | 8370420537086 |
15 | 92830050637086 |
16 | 1029498223070793 |
17 | 11417322172518550 |
18 | 126619992693837974 |
19 | 1404237451180502875 |
20 | 15573231068749231000 |
[0,1,2,34,277,3402,36170,407463,4491564,49926988, 553211363,6137270812,68054635036,754774491429, 8370420537086,92830050637086,1029498223070793, 11417322172518550,126619992693837974, 1404237451180502875,15573231068749231000] |