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