# A030962 (b-file synthesized from sequence entry)
1 2
2 4
3 14
4 56
5 282
6 1696
7 11876
8 95010
9 855097
10 8550971
11 94060683
12 1128728204
13 14673466654
14 205428533159
15 3081427997387
16 49302847958201
17 838148415289426
18 15086671475209678
19 286646758028983900
20 5732935160579678000