# A155543 (b-file synthesized from sequence entry) 0 2 1 4 2 16 3 64 4 256 5 1024 6 4096 7 16384 8 65536 9 262144 10 1048576 11 4194304 12 16777216 13 67108864 14 268435456 15 1073741824 16 4294967296 17 17179869184 18 68719476736 19 274877906944 20 1099511627776 21 4398046511104 22 17592186044416 23 70368744177664