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Unformatted text preview: Most solvers noted that the result is not true if a = 1 and N is even, but is otherwise correct. Since N a is the sum of N times the integer N a1 it is also the sum of N integers whose average is N a1 . Take these integers to be the N odd integers centered at the odd integer N a1 N + 1 ....
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 Spring '10
 AlbertoDelgado
 Combinatorics, Addition, Year of birth missing, Odd, Surnames, Dayo Dada, integer N a1

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