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

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

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

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

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