# A073773 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 6
4 40
5 152
6 480
7 1376
8 3712
9 9600
10 24064
11 58880
12 141312
13 333824
14 778240
15 1794048
16 4096000
17 9273344
18 20840448
19 46530560
20 103284736
21 228065280
22 501219328
23 1096810496
24 2390753280
25 5192548352
26 11240734720
27 24259854336