CIBD 6.0: Construct a cyclic IBD of size (v,k,r) (c) 2007 Design Computing (designcomputing.net/) Note: Best cyclic IBD for v=61, k=5, r=15, b=183. try # 1085 seed 454596038 # of iterations 8 E 0.8133 E/U 1 concurrences 1(60) Initial block(s) and the # of blocks generated by each initial block: 0 18 58 7 35 (61) 0 37 12 31 39 (61) 0 15 29 16 20 (61) Plan (blocks are columns): 26 21 24 37 55 8 18 54 43 38 28 44 34 15 3 58 59 5 30 13 6 12 39 32 22 40 46 19 7 48 47 10 0 31 60 17 41 56 45 1 20 50 57 49 23 4 2 29 35 42 25 52 11 36 53 27 9 16 33 51 14 44 39 42 55 12 26 36 11 0 56 46 1 52 33 21 15 16 23 48 31 24 30 57 50 40 58 3 37 25 5 4 28 18 49 17 35 59 13 2 19 38 7 14 6 41 22 20 47 53 60 43 9 29 54 10 45 27 34 51 8 32 23 18 21 34 52 5 15 51 40 35 25 41 31 12 0 55 56 2 27 10 3 9 36 29 19 37 43 16 4 45 44 7 58 28 57 14 38 53 42 59 17 47 54 46 20 1 60 26 32 39 22 49 8 33 50 24 6 13 30 48 11 33 28 31 44 1 15 25 0 50 45 35 51 41 22 10 4 5 12 37 20 13 19 46 39 29 47 53 26 14 55 54 17 7 38 6 24 48 2 52 8 27 57 3 56 30 11 9 36 42 49 32 59 18 43 60 34 16 23 40 58 21 0 56 59 11 29 43 53 28 17 12 2 18 8 50 38 32 33 40 4 48 41 47 13 6 57 14 20 54 42 22 21 45 35 5 34 52 15 30 19 36 55 24 31 23 58 39 37 3 9 16 60 26 46 10 27 1 44 51 7 25 49 11 47 55 2 29 31 50 54 12 23 24 9 59 44 43 56 36 19 32 22 38 13 30 4 53 40 3 8 37 21 10 15 26 14 46 5 33 35 18 51 1 27 39 25 17 60 52 7 6 16 45 0 28 49 20 48 42 58 41 34 57 48 23 31 39 5 7 26 30 49 60 0 46 35 20 19 32 12 56 8 59 14 50 6 41 29 16 40 45 13 58 47 52 2 51 22 42 9 11 55 27 38 3 15 1 54 36 28 44 43 53 21 37 4 25 57 24 18 34 17 10 33 23 59 6 14 41 43 1 5 24 35 36 21 10 56 55 7 48 31 44 34 50 25 42 16 4 52 15 20 49 33 22 27 38 26 58 17 45 47 30 2 13 39 51 37 29 11 3 19 18 28 57 12 40 0 32 60 54 9 53 46 8 42 17 25 33 60 1 20 24 43 54 55 40 29 14 13 26 6 50 2 53 8 44 0 35 23 10 34 39 7 52 41 46 57 45 16 36 3 5 49 21 32 58 9 56 48 30 22 38 37 47 15 31 59 19 51 18 12 28 11 4 27 50 25 33 41 7 9 28 32 51 1 2 48 37 22 21 34 14 58 10 0 16 52 8 43 31 18 42 47 15 60 49 54 4 53 24 44 11 13 57 29 40 5 17 3 56 38 30 46 45 55 23 39 6 27 59 26 20 36 19 12 35 24 38 12 57 25 6 28 52 20 3 35 1 17 21 4 19 5 13 53 22 60 48 40 15 16 31 29 23 26 41 33 32 49 36 8 46 45 47 43 9 50 54 18 55 51 11 59 0 37 7 34 14 58 39 56 2 10 30 42 27 44 39 53 27 11 40 21 43 6 35 18 50 16 32 36 19 34 20 28 7 37 14 2 55 30 31 46 44 38 41 56 48 47 3 51 23 0 60 1 58 24 4 8 33 9 5 26 13 15 52 22 49 29 12 54 10 17 25 45 57 42 59 53 6 41 25 54 35 57 20 49 32 3 30 46 50 33 48 34 42 21 51 28 16 8 44 45 60 58 52 55 9 1 0 17 4 37 14 13 15 11 38 18 22 47 23 19 40 27 29 5 36 2 43 26 7 24 31 39 59 10 56 12 40 54 28 12 41 22 44 7 36 19 51 17 33 37 20 35 21 29 8 38 15 3 56 31 32 47 45 39 42 57 49 48 4 52 24 1 0 2 59 25 5 9 34 10 6 27 14 16 53 23 50 30 13 55 11 18 26 46 58 43 60 44 58 32 16 45 26 48 11 40 23 55 21 37 41 24 39 25 33 12 42 19 7 60 35 36 51 49 43 46 0 53 52 8 56 28 5 4 6 2 29 9 13 38 14 10 31 18 20 57 27 54 34 17 59 15 22 30 50 1 47 3 Note: The order of treatments within each block is not randomized. Note: CIBD used 2.063 seconds.