# A049396 (b-file synthesized from sequence entry)
0 1
1 40
2 1300
3 39000
4 1121250
5 31395000
6 863362500
7 23434125000
8 629792109375
9 16794456250000
10 445053090625000
11 11733217843750000
12 307996968398437500
13 8055305327343750000
14 210013317462890625000
15 5460346254035156250000