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

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

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

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

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