# A152568 (b-file synthesized from sequence entry) 0 -1 1 1 2 -1 3 2 4 -1 5 -1 6 4 7 -2 8 -1 9 -1 10 8 11 -4 12 -2 13 -1 14 -1 15 16 16 -8 17 -4 18 -2 19 -1 20 -1 21 32 22 -16 23 -8 24 -4 25 -2 26 -1 27 -1 28 64 29 -32 30 -16 31 -8 32 -4 33 -2 34 -1 35 -1 36 128 37 -64 38 -32 39 -16 40 -8 41 -4 42 -2 43 -1 44 -1 45 256 46 -128 47 -64 48 -32 49 -16 50 -8 51 -4 52 -2 53 -1 54 -1 55 512 56 -256 57 -128 58 -64 59 -32 60 -16 61 -8 62 -4 63 -2