# A038213 (b-file synthesized from sequence entry)
0 1
1 3
2 14
3 70
4 353
5 1782
6 8997
7 45425
8 229347
9 1157954
10 5846414
11 29518061
12 149034250
13 752461609
14 3799116465
15 19181424995
16 96845429254
17 488964567014
18 2468741680809
19 12464472679038
20 62932092237197
21 317738931708801