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

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

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

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

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