# A059968 (b-file synthesized from sequence entry)
0 1
1 1
2 10
3 145
4 2470
5 46060
6 910252
7 18730855
8 397089550
9 8612835715
10 190223180840
11 4263421511271
12 96723482198980
13 2216905597676000
14 51256802757808320
15 1194060413809070710
16 27999654303202465310
17 660370070571422998410
18 15654733143626084944150