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 A057165 Addition steps in Recamán's sequence A005132. 9
 1, 2, 3, 5, 6, 7, 9, 11, 13, 15, 17, 18, 19, 21, 24, 26, 28, 30, 32, 33, 34, 36, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 66, 67, 69, 71, 73, 75, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 101, 102, 104, 106, 108, 112, 113, 114 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 Nick Hobson, Python program for this sequence C. L. Mallows, Plot (jpeg) of first 10000 terms of A005132 C. L. Mallows, Plot (postscript) of first 10000 terms of A005132 PROG (Haskell) import Data.Set (Set, singleton, notMember, insert) a057165 n = a057165_list !! n a057165_list = r (singleton 0) 1 0 where    r :: Set Integer -> Integer -> Integer -> [Integer]    r s n x = if x > n && (x - n) `notMember` s                 then r (insert (x-n) s) (n+1) (x-n)                 else n : r (insert (x+n) s) (n+1) (x+n) -- Reinhard Zumkeller, Mar 17 2011 CROSSREFS Cf. A005132, A057166, A057167. Union of A187921 and A187922. Sequence in context: A218442 A255057 A106843 * A245395 A023884 A135607 Adjacent sequences:  A057162 A057163 A057164 * A057166 A057167 A057168 KEYWORD nonn AUTHOR N. J. A. Sloane, Sep 14 2000 STATUS approved

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Last modified October 14 07:31 EDT 2019. Contains 327995 sequences. (Running on oeis4.)