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

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

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

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

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