# A052808 (b-file synthesized from sequence entry)
0 0
1 2
2 5
3 24
4 169
5 1572
6 18208
7 252676
8 4088138
9 75571648
10 1571427096
11 36304942704
12 922615912656
13 25577663099232
14 768176940800592
15 24845381066244288
16 860979848497650768
17 31825036424306681088
18 1249895536243141292544
19 51975908060575367916288