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

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

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

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

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