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

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

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

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

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