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

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

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

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

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