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

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

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

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

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