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