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

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

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

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

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