N= 2(ort2)  1 solutions           1 positions           2 cases  max/aver  4  4
N= 4(ort2)  1 solutions           2 positions           4 cases  max/aver  8  6
N= 6(ort2)  0 solutions           4 positions           8 cases  max/aver  8  8
N= 8(ort2)  0 solutions           9 positions          15 cases  max/aver 12  8
N=10(ort2)  1 solutions          14 positions          33 cases  max/aver 20 11
N=12(ort2)  0 solutions          28 positions          62 cases  max/aver 20 12
N=14(ort2)  0 solutions          60 positions         123 cases  max/aver 20 13
N=16(ort2)  0 solutions         130 positions         291 cases  max/aver 24 15
N=18(ort2)  0 solutions         276 positions         628 cases  max/aver 24 17
N=20(ort2)  0 solutions         710 positions        1622 cases  max/aver 32 19
N=22(ort2)  0 solutions        1656 positions        4042 cases  max/aver 32 21
N=24(ort2)  0 solutions        4254 positions       10237 cases  max/aver 36 23
N=26(ort2)  0 solutions       11347 positions       28113 cases  max/aver 36 25
N=28(ort2)  0 solutions       30317 positions       76230 cases  max/aver 40 27
N=30(ort2)  0 solutions       80332 positions      204582 cases  max/aver 52 28
N=32(ort2)  0 solutions      215644 positions      553136 cases  max/aver 48 30
N=34(ort2)  0 solutions      617246 positions     1612856 cases  max/aver 52 32
N=36(ort2)  0 solutions     2124929 positions     5588831 cases  max/aver 56 35
N=38(ort2)  0 solutions     5894660 positions    15707387 cases  max/aver 56 36
N=40(ort2)  0 solutions    18147493 positions    48758679 cases  max/aver 60 38
N=42(ort2)  0 solutions    53623255 positions   145837782 cases  max/aver    40
N=44(ort2)  0 solutions   164182447 positions   447763446 cases  max/aver    42
N=46(ort2)  0 solutions   569674453 positions  1575517068 cases  max/aver    44
N=48(ort2)  0 solutions  1853921359 positions  5144776626 cases
N=50(ort2)  0 solutions  6410051600 positions 18032219505 cases