# A153911 (b-file synthesized from sequence entry)
0 1
1 2
2 412
3 3309
4 6170
5 28173
6 363650
7 995263
8 7017397
9 125707566
10 496907299
11 5084773943
12 131364083278
13 749724226722
14 10945594000512
15 414717014027555
16 3429998068477278
17 72977331677447737
18 3992874305065142952