# A326744 (b-file synthesized from sequence entry)
0 1
1 6
2 42
3 198
4 1068
5 5196
6 25902
7 125874
8 609780
9 2933562
10 14058132
11 67139772
12 319822572
13 1520161374
14 7211880744
15 34157352042
16 161541458514
17 763007236542
18 3599867690610