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 A175121 a(n) = A175120(n+1) - A175120(n) - 1. 1
 4, 9, 25, 9, 25, 9, 49, 9, 49, 27, 35, 49, 33, 25, 9, 25, 9, 121, 15, 35, 25, 21, 35, 49, 15, 25, 27, 25, 15, 143, 25, 9, 49, 21, 25, 33, 35, 25, 9, 25, 9, 121, 27, 49, 21, 49, 21, 25, 21, 25, 9, 25, 33, 25, 9, 25, 27, 35, 49, 15, 121, 15, 25, 9, 25, 9, 121, 15, 35, 35, 221, 25, 21 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Every term is a composite. LINKS Table of n, a(n) for n=1..73. CROSSREFS A175120 Sequence in context: A128416 A353978 A334656 * A133905 A131826 A051961 Adjacent sequences: A175118 A175119 A175120 * A175122 A175123 A175124 KEYWORD nonn AUTHOR Leroy Quet, Feb 14 2010 EXTENSIONS More terms from R. J. Mathar, Feb 21 2010 STATUS approved

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Last modified December 3 03:10 EST 2023. Contains 367531 sequences. (Running on oeis4.)