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

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

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

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

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