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

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

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

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

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