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