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