# A111794 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 5 6 7 7 8 8 16 9 11 10 17 11 19 12 32 13 53 14 128 15 256 16 65536 17 31 18 59 19 67 20 131 21 241 22 719 23 1619 24 2048 25 131072 26 524288 27 821641 28 4294967296 29 9007199254740992