# A123560 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 2
5 3
6 4
7 5
8 15
9 67
10 535
11 8986
12 912849
13 1662587477
14 81083409799344
15 651628371908007046307
16 17425286333232464262345491287814
17 67473400772659322911375035883722405962101960016
18 12550884311528115972476468763183847895333364390665475583839492176837589