# A113283 (b-file synthesized from sequence entry)
0 1
1 3
2 11
3 51
4 255
5 1325
6 7039
7 37951
8 206799
9 1135969
10 6279509
11 34889553
12 194664283
13 1089943229
14 6120967411
15 34463104999
16 194474062663
17 1099571123853
18 6227893795649
19 35329149864161
20 200691916063033
21 1141489886332555