# A054749 (b-file synthesized from sequence entry)
1 1
2 5
3 23
4 165
5 1328
6 13193
7 145076
8 1774515
9 23600723
10 338704176
11 5202002092
12 85007211518
13 1470699469052
14 26828468813710
15 514213843983674
16 10323889080831256
17 216536421271101354
18 4733415248988274281
19 107609706100197846274
20 2539397701858619916499