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