# A039764 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 15
4 72
5 403
6 2546
7 17867
8 137528
9 1149079
10 10335766
11 99425087
12 1017259964
13 11018905667
14 125860969266
15 1510764243699
16 18999827156304
17 249687992188015
18 3420706820299374
19 48751337014396167