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

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

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

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

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