n | a(n) |
---|---|
54 | 1 |
55 | 55 |
56 | 1540 |
57 | 29260 |
58 | 424270 |
59 | 5006386 |
60 | 50063860 |
61 | 436270780 |
62 | 3381098545 |
63 | 23667689815 |
64 | 151473214816 |
65 | 895068996640 |
66 | 4922879481520 |
67 | 25371763481680 |
68 | 123234279768160 |
69 | 566877686933536 |
70 | 2480089880334220 |
71 | 10358022441395860 |
[1,55,1540,29260,424270,5006386,50063860, 436270780,3381098545,23667689815,151473214816, 895068996640,4922879481520,25371763481680, 123234279768160,566877686933536,2480089880334220, 10358022441395860] |