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

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

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

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

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