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

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

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

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

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