# A346220 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 40
5 321
6 3356
7 45123
8 752256
9 15018433
10 355378732
11 9823042923
12 311510611072
13 11242338245009
14 458052976883672
15 20851748359005567
16 1054108827258438656
17 58860837547461314049
18 3606677286494115444812
19 241397002229305033296603
20 17579096976247770110062080