# A298672 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 0
4 0
5 0
6 20
7 0
8 1121
9 72828
10 872640
11 9037710
12 118590450
13 1743739426
14 24407782672
15 424735169040
16 7802802463460
17 135385454550288
18 2823521345232834
19 59332856029292241
20 1238888844244575904
21 28893281420537822022
22 684650546073054870188
23 16342742577592266281996