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

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

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

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

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