# A199247 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 25
5 92
6 359
7 1453
8 6018
9 25411
10 109032
11 473942
12 2082550
13 9235675
14 41284297
15 185819487
16 841433773
17 3830604764
18 17521832924
19 80490034307
20 371169646860
21 1717567062240
22 7973153760616
23 37119622029816
24 173272771061677
25 810810134833720
26 3802675087749650