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

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

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

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

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