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