# A061182 (b-file synthesized from sequence entry)
0 3
1 22
2 111
3 474
4 1836
5 6666
6 23109
7 77378
8 252177
9 804228
10 2519640
11 7777860
12 23709783
13 71501422
14 213619683
15 633011454
16 1862264196
17 5443487406
18 15820188729
19 45739697306
20 131624104677
21 377157259848