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