# A181983 (b-file synthesized from sequence entry) 0 0 1 1 2 -2 3 3 4 -4 5 5 6 -6 7 7 8 -8 9 9 10 -10 11 11 12 -12 13 13 14 -14 15 15 16 -16 17 17 18 -18 19 19 20 -20 21 21 22 -22 23 23 24 -24 25 25 26 -26 27 27 28 -28 29 29 30 -30 31 31 32 -32 33 33 34 -34 35 35 36 -36 37 37 38 -38 39 39 40 -40 41 41 42 -42 43 43 44 -44 45 45 46 -46 47 47 48 -48 49 49 50 -50 51 51 52 -52 53 53 54 -54 55 55 56 -56 57 57 58 -58 59 59