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

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

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

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

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