# A022976 (b-file synthesized from sequence entry) 0 20 1 19 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 10 10 11 9 12 8 13 7 14 6 15 5 16 4 17 3 18 2 19 1 20 0 21 -1 22 -2 23 -3 24 -4 25 -5 26 -6 27 -7 28 -8 29 -9 30 -10 31 -11 32 -12 33 -13 34 -14 35 -15 36 -16 37 -17 38 -18 39 -19 40 -20 41 -21 42 -22 43 -23 44 -24 45 -25 46 -26 47 -27 48 -28 49 -29 50 -30 51 -31 52 -32 53 -33 54 -34 55 -35 56 -36 57 -37 58 -38 59 -39 60 -40