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

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

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

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

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