# A283298 (b-file synthesized from sequence entry)
0 1
1 3
2 26
3 305
4 4120
5 60398
6 934064
7 15000903
8 247766620
9 4182015080
10 71816825856
11 1250772245698
12 22039796891026
13 392213323252200
14 7038863826811100
15 127248841020380105
16 2315130641074743540
17 42358284517663463380
18 778876539384226875800