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

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

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

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

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