# A156335 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 16
4 92
5 1816
6 47344
7 4888640
8 546663016
9 245429690704
10 113080892367776
11 209848258185362560
12 393950238751186551328
13 2976605303522286162203456
14 22642571073509592590956639360
15 692351532949951721637759480882688