# A145660 (b-file synthesized from sequence entry)
1 0
2 4
3 18
4 220
5 883
6 17672
7 23566
8 659868
9 5278979
10 95021762
11 380087174
12 16723836916
13 66895348819
14 3478558152448
15 13914232622662
16 11131386100532
17 178102177617521
18 3027737019533893
19 4036982692723202
20 306810684647167556