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

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

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

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

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