Seven person wearing medals with numbers 1, 2, 3, 4, 5, 6, 7 are seated on 7 chairs around a circular table. In how many ways can they be seated so that no two persons whose medals have consecutive numbers are seated next to each other? (Two arrangements obtained by rotation around the table are considered different)

Seven person wearing medals with numbers 1, 2, 3, 4, 5, 6, 7 are seate

1.	Seven person wearing medals with numbers 1, 2, 3, 4, 5, 6, 7 are seated on 7 chairs around a circular table. In how many ways can they be seated so that no two persons whose medals have consecutive numbers are seated next to each other? (Two arrangements obtained by rotation around the table are considered different)
Answer» Seven person wearing medals with numbers 1, 2, 3, 4, 5, 6, 7 are seated on 7 chairs around a circular table. In how many ways can they be seated so that no two persons whose medals have consecutive numbers are seated next to each other? (Two arrangements obtained by rotation around the table are considered different)