# A105075 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 6 6 10 7 16 8 38 9 80 10 160 11 328 12 752 13 1712 14 4000 15 8736 16 16940 17 34816 18 83904 19 178304 20 433408 21 1031552 22 2601600 23 5193984 24 11318272 25 26631680 26 62674688 27 160582656 28 336680960 29 715578368 30 1829193728 31 4724027392 32 11004676992