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

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

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

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

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