(0 6 3)(1 11 9)(2 21 19 16 15 7 5)(4 13 8)(10 14 12)(17 20 18)
ALLOWS (11/8)-SEQUENCE
1: (0 1 3)

(0)(1 6 3 11 9)(2 21 19 16 15 7 5)(4 13 8)(10 14 12)(17 20 18)
2: (1 6 9)

(0)(1)(2 21 19 16 15 7 5)(3 11 9)(4 13 8)(6)(10 14 12)(17 20 18)
3: (5 19 7)

(0)(1)(2 21 19)(3 11 9)(4 13 8)(5)(6)(7 16 15)(10 14 12)(17 20 18)
4: (4 13 8)

(0)(1)(2 21 19)(3 11 9)(4)(5)(6)(7 16 15)(8)(10 14 12)(13)(17 20 18)