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

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

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

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

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