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

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

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

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

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