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

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

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

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

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