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

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

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

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

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