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

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

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

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

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