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