# A043699 (b-file synthesized from sequence entry)
0 0
1 2
2 24
3 350
4 4896
5 68962
6 970200
7 13652158
8 192099456
9 2703046850
10 38034749784
11 535189557278
12 7530688519200
13 105964828904482
14 1491038292992664
15 20980500931258750
16 295218051329511936
17 4154033219547089282
18 58451683124982331800
19 822477596969315258078