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

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

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

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

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