(0 19 3)(1 8 6)(2 11 4)(5 12 10)(7 15 9)(13 17 14)(16 20 18)
ALLOWS (11/8)-SEQUENCE
1: (1 16 20)
(0 19 3)(1 18 16 8 6)(2 11 4)(5 12 10)(7 15 9)(13 17 14)(20)
2: (0 19 3)
(0)(1 18 16 8 6)(2 11 4)(3)(5 12 10)(7 15 9)(13 17 14)(19)(20)
3: (1 18 6)
(0)(1)(2 11 4)(3)(5 12 10)(6 16 8)(7 15 9)(13 17 14)(18)(19)(20)
4: (2 11 4)
(0)(1)(2)(3)(4)(5 12 10)(6 16 8)(7 15 9)(11)(13 17 14)(18)(19)(20)