# A211974 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 1 4 3 5 1 6 3 7 3 8 3 9 5 10 3 11 5 12 7 13 1 14 3 15 3 16 5 17 9 18 5 19 13 20 7 21 9 22 13 23 7 24 11 25 13 26 3 27 7 28 7 29 9 30 15 31 11 32 21 33 15 34 15 35 17 36 11 37 13 38 15 39 15 40 15 41 9 42 11 43 19 44 13 45 21 46 21 47 17 48 17 49 23 50 17 51 27 52 17 53 19 54 27 55 21 56 27 57 19 58 17 59 17 60 21 61 31 62 31 63 25 64 23