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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A345873 a(n) = A345415(A345872(n), A345872(n+1)). 3 0, 1, -1, 2, 3, -2, -3, -4, 6, -5, 5, 9, 4, 7, -6, -8, -9, 10, 11, -7, -12, 8, -11, -16, 13, -15, -19, -10, 12, 15, 19, -13, 20, -20, 21, 22, 14, -17, 18, 23, 16, 17, -14, -25, 26, -23, 27, -29, -28, -27, -26, 29, -24, -33, 25, 33, -18, 28, -22, 31, -21, -35 (list; graph; refs; listen; history; text; internal format) OFFSET 1,4 COMMENTS All terms are distinct. LINKS Rémy Sigrist, Table of n, a(n) for n = 1..10000 Rémy Sigrist, PARI program for A345873 EXAMPLE a(3) = A345415(A345872(3), A345872(4)) = A345415(2, 3) = -1. PROG (PARI) See Links section. CROSSREFS Cf. A345415, A345872. Sequence in context: A320053 A098235 A342847 * A114868 A249049 A138239 Adjacent sequences: A345870 A345871 A345872 * A345874 A345875 A345876 KEYWORD sign AUTHOR Rémy Sigrist, Jun 27 2021 STATUS approved

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Last modified August 18 20:50 EDT 2024. Contains 375284 sequences. (Running on oeis4.)