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

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

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

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

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