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

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

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

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

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