Let a > 4 be a positive integer. Prove that there are composite and relatively prime positive integers 21 and 22 such th
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Let a > 4 be a positive integer. Prove that there are composite and relatively prime positive integers 21 and 22 such th
Let a > 4 be a positive integer. Prove that there are composite and relatively prime positive integers 21 and 22 such that the sequence {n}n21 defined by In+1 = an+n-1, n ≥ 2, consists of composite numbers only.