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

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

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

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

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