# A074028 (b-file synthesized from sequence entry) 1 0 2 0 3 1 4 1 5 2 6 2 7 4 8 6 9 13 10 24 11 48 12 85 13 160 14 288 15 541 16 1008 17 1920 18 3626 19 6912 20 13107 21 24989 22 47616 23 91136 24 174590 25 335462 26 645120 27 1242904 28 2396745 29 4628480 30 8947294 31 17317888 32 33552384 33 65074253 34 126320640 35 245428574 36 477218560 37 928645120 38 1808400384 39 3524068955