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

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

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

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

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