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

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

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

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

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