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

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

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

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

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