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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A084040 Primes obtained as the product of successive terms of A084039 + 1, i.e., a(n) = A084039(n)*A084039(n+1) + 1. 2 3, 17, 257, 12289, 1769473, 18433, 97, 1153, 577, 37, 19, 433, 1297, 163, 487, 1459, 2917, 139969, 839809, 209953, 52489, 472393, 102036673, 34284321793, 6858433, 197, 3137, 50177, 3612673, 10838017, 301057, 3137, 3529, 15877, 47629, 15877, 883 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS Table of n, a(n) for n=1..37. CROSSREFS Cf. A084039, A084041. Sequence in context: A201107 A210902 A188803 * A009495 A153487 A267658 Adjacent sequences: A084037 A084038 A084039 * A084041 A084042 A084043 KEYWORD nonn AUTHOR Amarnath Murthy, May 26 2003 EXTENSIONS Corrected and extended by Ray Chandler, Aug 05 2003 STATUS approved

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Last modified August 18 15:26 EDT 2024. Contains 375269 sequences. (Running on oeis4.)