# A085349 (b-file synthesized from sequence entry)
1 1
2 4
3 15
4 71
5 269
6 1274
7 4827
8 22861
9 86617
10 410224
11 1554279
12 7361171
13 27890405
14 132090854
15 500473011
16 2370274201
17 8980623793
18 42532844764
19 161150755263
20 763220931551
21 2891732970941
22 13695443923154
23 51890042721675