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

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

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

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

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