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

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

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

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

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