# A028144 (b-file synthesized from sequence entry)
0 1
1 33
2 703
3 12333
4 194239
5 2860821
6 40291111
7 549874221
8 7333588207
9 96118840389
10 1242878986999
11 15899609772189
12 201637495269055
13 2538952949123637
14 31780003009949767
15 395799688351994637