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