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

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

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

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

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