# A378613 (b-file synthesized from sequence entry)
0 1
1 4
2 44
3 532
4 6748
5 88024
6 1169444
7 15738328
8 213842716
9 2927097712
10 40302226944
11 557565134196
12 7744326799684
13 107925260553088
14 1508352084699224
15 21132667178858512
16 296716493251706652
17 4174006026061733232
18 58816013334014598032
19 830025065117154066064
20 11729345524163083673648