# A027523 (b-file synthesized from sequence entry)
2 7
3 19
4 49
5 1962
6 74100
7 100156
8 50911
9 25039
10 13189
11 111925
12 61425
13 172130400
14 15960298816
15 36469482889
16 21338706825
17 6300137600
18 7570610944
19 224166730176
20 49733337790656
21 30706373873700
22 536003165993469300
23 10639031491061081605728
24 4030033479941966540736