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

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

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

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

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