# A367887 (b-file synthesized from sequence entry)
0 1
1 4
2 20
3 130
4 1088
5 11314
6 141080
7 2052250
8 34118048
9 638102434
10 13260323240
11 303117147370
12 7558845354608
13 204203189722354
14 5940927689713400
15 185186461979970490
16 6157337034085736768
17 217523186522883467074
18 8136577601614291359560
19 321261794453042025993610
20 13352198666907246870560528