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

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

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

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

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