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

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

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

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

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