# A260504 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 7
4 20
5 91
6 362
7 2227
8 11720
9 92491
10 608222
11 5866147
12 46290620
13 527635291
14 4857587282
15 63886537267
16 672183848720
17 10019232896491
18 118594819341542
19 1975680877259587
20 25983971598078020
21 478434297205284091
22 6921555837554655002
23 139581878985127217107