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

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

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

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

(0 19 8)(1)(2 15 3)(4 17 14)(5)(6)(7)(9)(10)(11)(12)(13)(16 20 18)