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

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

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

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

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