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