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

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

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

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

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