# A016808 (b-file synthesized from sequence entry)
0 0
1 65536
2 16777216
3 429981696
4 4294967296
5 25600000000
6 110075314176
7 377801998336
8 1099511627776
9 2821109907456
10 6553600000000
11 14048223625216
12 28179280429056
13 53459728531456
14 96717311574016
15 167961600000000
16 281474976710656
17 457163239653376