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

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

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

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

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