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

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

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

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

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