n | a(n) |
---|---|
0 | 1 |
1 | 15 |
2 | 179 |
3 | 2070 |
4 | 24574 |
5 | 305956 |
6 | 4028156 |
7 | 56231712 |
8 | 832391136 |
9 | 13051234944 |
10 | 216374987520 |
11 | 3785626465920 |
12 | 69751622298240 |
13 | 1350747863435520 |
14 | 27437426560500480 |
15 | 583506719443584000 |
16 | 12969079056388224000 |
17 | 300749419818102528000 |
18 | 7265204785551331584000 |
[1,15,179,2070,24574,305956,4028156,56231712, 832391136,13051234944,216374987520,3785626465920, 69751622298240,1350747863435520,27437426560500480, 583506719443584000,12969079056388224000, 300749419818102528000,7265204785551331584000] |