# A052457 (b-file synthesized from sequence entry)
1 1
2 0
3 0
4 2
5 8
6 98
7 1844
8 38039
9 949738
10 24643236
11 947689757
12 45828982764
13 2151748695931
14 123821075526032
15 8131094055190149
16 573957471153552576
17 44010987379157415768
18 3655486139293429450720
19 333633403912637510806972