N       a/b  exact  n    k[i]  polygons
------------------------------------------------------------------------
 6  60    1      1    3    3   1-1-1
                      4    9   1-22-3
                      6   12   6*2
------------------------------------------------------------------------
 8  45    1.414       3    4   1-1-2
                      4    8   4*2,        1-1-1-5,   1-2-2-3
                      6   16   11-22-33,   2*(2-3-3), 22-3333, 11-333-5
                      8   24   6*3,        4*(1-5)
                     16   56   8*(1-6),    8*(2-5)
------------------------------------------------------------------------
10  36    1.618       3    5   1-2-2,      1-1-3
                      4   10   22-33,      2-3-2-3,   111-7,   1-333
                      6   20   3333-44,
                      8   30   12222-777,  ...
                     10   40   10*4,       ...
                     20   90   10*(1-8),   ...