# A161932 (b-file synthesized from sequence entry)
0 1
1 25
2 324
3 2900
4 20149
5 115805
6 572975
7 2507895
8 9904050
9 35818770
10 120016066
11 376029250
12 1110031585
13 3106677225
14 8286768736
15 21161266240
16 51931463950
17 122883804990
18 281186004075
19 623785796595
20 1344621849285
21 2822018693325