source:                        A_0 [0, 672, 0, 778, 342, 330] | A_1&A_2 [128, 211, 529, 313, 322, 125] | total 3750
L=120, angle in [0,3pi/10):    A_0 [0, 662, 0, 766, 336, 332] | A_1&A_2 [126, 206, 523, 304, 323, 124] | total 3702  L1 distance to the source: 54
lengths closest to 120: below 119.992941758, above 120.004745271 (so '<' and '<=' give the same table)
scan over all cut-offs up to 130.0: minimal L1 distance 18, reached with 3752 geodesics (cut-off just above 120.85657): A_0 [0, 672, 0, 779, 339, 336] | A_1&A_2 [126, 210, 529, 312, 325, 124] | total 3752
cut-off giving exactly 3750 geodesics: L in (120.85648, next]: A_0 [0, 672, 0, 779, 339, 336] | A_1&A_2 [126, 210, 529, 310, 325, 124] | total 3750 ; L1 = 20
the entry (A_0, distance 5) exceeds the source's 330 for every cut-off > 119.21771; at that cut-off the table is A_0 [0, 655, 0, 750, 333, 330] | A_1&A_2 [124, 202, 515, 302, 317, 124] | total 3652
   -> at any cut-off <= 119.21771 the entry (A_0, distance 1) is <= 655 < 672: no cut-off reproduces the source's table.
variants at L=120:  angle <= 3pi/10 (bisector included): total 3703 ; angle > 0 (edge e excluded): total 3701
Veech asymptotics: N(L) ~ 0.25760 L^2 for the half-sector; exact counts N(L) and N(L)/(c L^2):
   L= 20: N=  101   c L^2 =    103.0   ratio 0.9802
   L= 40: N=  407   c L^2 =    412.2   ratio 0.9875
   L= 60: N=  927   c L^2 =    927.4   ratio 0.9996
   L= 80: N= 1644   c L^2 =   1648.7   ratio 0.9972
   L=100: N= 2573   c L^2 =   2576.0   ratio 0.9988
   L=110: N= 3129   c L^2 =   3117.0   ratio 1.0039
   L=120: N= 3702   c L^2 =   3709.5   ratio 0.9980
   L=125: N= 4013   c L^2 =   4025.0   ratio 0.9970
   L=130: N= 4356   c L^2 =   4353.5   ratio 1.0006
   the source's 3750 at L=120 would be ratio 1.0109
