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 A055018 Numbers n such that n and n+1 are modest (cf. A054986). 2
 411, 811, 1421, 2036, 2044, 2054, 3054, 4036, 4044, 4054, 8036, 12036, 16036, 20036, 24036, 28036, 32036, 40011, 40044, 50054, 50074, 80011, 88296, 100110, 100270, 100369, 120296, 120404, 140021, 144242, 176296, 200044, 200270, 200369 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..250 EXAMPLE 2036 is modest because Mod[2036, 36] = 20. 2037 is modest because Mod[2037, 037] = 2. Hence 2036 is this pair's modest twin representative. PROG (Haskell) import Data.List (elemIndices) a055018 n = a055018_list !! (n-1) a055018_list = map (a054986 . (+ 1)) \$ elemIndices 1 \$ zipWith (-) (tail a054986_list) a054986_list -- Reinhard Zumkeller, Mar 26 2012 CROSSREFS Sequence in context: A212710 A187991 A090123 * A201844 A105211 A081378 Adjacent sequences: A055015 A055016 A055017 * A055019 A055020 A055021 KEYWORD base,easy,nonn AUTHOR Hans Havermann, May 31 2000 STATUS approved

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Last modified September 9 10:11 EDT 2024. Contains 375764 sequences. (Running on oeis4.)