# A093912 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 6 6 10 7 20 8 40 9 80 10 160 11 308 12 628 13 1256 14 2488 15 5000 16 9940 17 19928 18 39864 19 79660 20 159380 21 318724 22 637496 23 1274980 24 2549924 25 5099884 26 10199748 27 20399528 28 40799020 29 81598052 30 163196124 31 326392240 32 652784444 33 1305568896 34 2611137796