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

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

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

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

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