# A307525 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 21
4 146
5 1240
6 12479
7 144970
8 1908682
9 28079550
10 456458832
11 8125189974
12 157190542607
13 3284222304545
14 73705849847317
15 1768479436456975
16 45180024672023814
17 1224529894981726614
18 35096983241255523572
19 1060703070504583747430
20 33714045363258013414692