# A054671 (b-file synthesized from sequence entry) 0 2 1 8 2 4 3 128 4 1 5 1024 6 16 7 32768 8 1 9 262144 10 32 11 4194304 12 1 13 33554432 14 512 15 2147483648 16 1 17 17179869184 18 2048 19 274877906944 20 64 21 2199023255552 22 2048 23 70368744177664 24 1 25 562949953421312 26 131072 27 9007199254740992 28 256