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

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

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

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

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