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