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

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

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

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

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