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

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

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

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

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