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

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

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

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

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