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

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

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

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

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