# A121673 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 16
4 131
5 1306
6 15257
7 203967
8 3047907
9 50115310
10 896746169
11 17308420306
12 357767229778
13 7872926416538
14 183537476164902
15 4513828442107368
16 116688468769638435
17 3160881019508153238
18 89471871451166037425