# A291526 (b-file synthesized from sequence entry) 1 0 2 0 3 4 4 20 5 68 6 196 7 516 8 1284 9 3076 10 7172 11 16388 12 36868 13 81924 14 180228 15 393220 16 851972 17 1835012 18 3932164 19 8388612 20 17825796 21 37748740 22 79691780 23 167772164 24 352321540 25 738197508 26 1543503876 27 3221225476 28 6710886404 29 13958643716 30 28991029252 31 60129542148