# A366696 (b-file synthesized from sequence entry)
0 1
1 3
2 10
3 57
4 378
5 2730
6 20853
7 165592
8 1353297
9 11307168
10 96148149
11 829336122
12 7238765532
13 63816716547
14 567425771478
15 5082596905629
16 45820260590481
17 415423374916503
18 3785371205061825
19 34647928319586375
20 318419608552433190
21 2937021429784279707