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

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

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

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

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