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

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

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

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

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