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

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

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

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

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