# A378610 (b-file synthesized from sequence entry)
0 1
1 4
2 30
3 276
4 2825
5 30884
6 353108
7 4170500
8 50485764
9 623084056
10 7810707894
11 99175174284
12 1272856327470
13 16486135484248
14 215212582153840
15 2828658852385572
16 37401956484705132
17 497174193516767600
18 6640063367021736728
19 89058042321373540912
20 1199031374607501831273