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

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

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

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

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