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

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

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

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

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