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

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

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

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

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