# A028524 (b-file synthesized from sequence entry)
0 1
1 0
2 255
3 3640
4 27525
5 154056
6 713850
7 2878920
8 10432650
9 34739200
10 107930865
11 316293000
12 881570320
13 2352362160
14 6040988775
15 14993606776
16 36092638500
17 84513447480
18 192980579410
19 430636071000
20 940847483976
21 2015771306800
22 4241235245220
23 8774382020520