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

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

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

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

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