# A148728 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 25
5 72
6 278
7 918
8 3678
9 13040
10 53884
11 200694
12 845723
13 3266873
14 13972607
15 55450557
16 240031808
17 972983451
18 4251703434
19 17532731134
20 77217505713
21 322913991532
22 1431620492774
23 6057640157681
24 27007621918993
25 115423839180006
26 517127199750207
27 2229091048295270
28 10029555035534357