Consider a random permutation of the set \{1,2, \ldots, 2015\}. In other words, for each 1 \leq i \leq 2015, i is sent to the element a_{i} where a_{i} \in\{1,2, \ldots, 2015\} and if i \neq j, then a_{i} \neq a_{j}. What is the expected number of ordered pairs \left(a_{i}, a_{j}\right) with i-j>155 and a_{i}-a_{j}>266?