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

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

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

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

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