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