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