# A049689 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 0 4 3 5 0 6 5 7 0 8 9 9 0 10 13 11 0 12 17 13 0 14 23 15 0 16 31 17 0 18 37 19 0 20 45 21 0 22 55 23 0 24 63 25 0 26 75 27 0 28 87 29 0 30 95 31 0 32 111 33 0 34 127 35 0 36 139 37 0 38 157 39 0 40 173 41 0