(0 20 6)(1 17 3)(2 7 4)(5 19 13 11 10)(8 16 14 12 9)(15 21 18)
ALLOWS (11/8)-SEQUENCE
1: (0 1 6)

(0)(1 20 6 17 3)(2 7 4)(5 19 13 11 10)(8 16 14 12 9)(15 21 18)
2: (3 6 17)

(0)(1 20 6)(2 7 4)(3)(5 19 13 11 10)(8 16 14 12 9)(15 21 18)(17)
3: (2 7 4)

(0)(1 20 6)(2)(3)(4)(5 19 13 11 10)(7)(8 16 14 12 9)(15 21 18)(17)
4: (5 19 13)

(0)(1 20 6)(2)(3)(4)(5 11 10)(7)(8 16 14 12 9)(13)(15 21 18)(17)(19)