# A298122 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 5
5 11
6 34
7 90
8 300
9 875
10 3038
11 9408
12 33516
13 108108
14 392040
15 1302444
16 4785066
17 16256955
18 60324550
19 208579800
20 780088452
21 2735682092
22 10296854984
23 36532677272
24 138231751840
25 495241833996
26 1882201158264
27 6799413051200
28 25939319270000
29 94374970110000