# A027110 (b-file synthesized from sequence entry)
1 2
2 11
3 80
4 591
5 4492
6 34859
7 274834
8 2194175
9 17697088
10 143951359
11 1179361946
12 9721994363
13 80573155210
14 670916858663
15 5609929650932
16 47082821529795
17 396479220532944
18 3348822504340655
19 28363386616346538
20 240832364304754043
21 2049614659600342062