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

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

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

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

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