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

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

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

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

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