# A244998 (b-file synthesized from sequence entry)
0 1
1 44
2 870
3 9480
4 68290
5 365936
6 1573374
7 5709120
8 18107760
9 51488800
10 133748186
11 321979164
12 726436425
13 1549758640
14 3148837580
15 6129352176
16 11486265339
17 20807609460
18 36563769670
19 62510325680
20 104239453956
21 169923049824
22 271300238650
23 424972948400