The number of three digit numbers having only two consecutive digits identical is

The number of three-digit numbers having only two consecutive digit identical N, then the value of (N/2)^(1/2) is

The number of three-digit numbers having only two consecutive digit identical N , then the value of (N//2)^(1//2) is _______.

The number of three-digit numbers having only two consecutive digit identical N , then the value of (N//2)^(1//2) is _______.

The number of three-digit numbers having only two consecutive digit identical N , then the value of (N//2)^(1//2) is _______.

The number of 5-digit numbers in which no two consecutive digits are identical, is

The number of 5-digit numbers in which no two consecutive digits are identical, is

The number of 'n' digit numbers such that no two consecutive digits are same is

The number of 'n' digit numbers such that no two consecutive digits are same is