# A243695 (b-file synthesized from sequence entry)
0 1
1 1
2 7
3 60
4 579
5 6017
6 65732
7 744264
8 8656795
9 102819507
10 1241838271
11 15205587136
12 188320591092
13 2354971302700
14 29693879866840
15 377104836064720
16 4819271465838795
17 61930407776801015
18 799765007716515125
19 10373651783800459340
20 135089139660222638795