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