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 A055944 a(n) = n + (reversal of base-2 digits of n) (written in base 10). 12
 0, 2, 3, 6, 5, 10, 9, 14, 9, 18, 15, 24, 15, 24, 21, 30, 17, 34, 27, 44, 25, 42, 35, 52, 27, 44, 37, 54, 35, 52, 45, 62, 33, 66, 51, 84, 45, 78, 63, 96, 45, 78, 63, 96, 57, 90, 75, 108, 51, 84, 69, 102, 63, 96, 81, 114, 63, 96, 81, 114, 75, 108, 93, 126, 65, 130, 99, 164, 85 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS If n has an even number of digits in base-2 then a(n) is a multiple of 3. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 FORMULA a(n) = n + A030101(n). MATHEMATICA f[n_] := Block[{id = IntegerDigits[n, 2]}, FromDigits[id + Reverse@id, 2]]; Array[f, 69, 0] (* Robert G. Wilson v, Nov 07 2010 *) PROG (Haskell) a055944 n = n + a030101 n  -- Reinhard Zumkeller, Nov 14 2011 CROSSREFS Cf. A030101, A035522 (iterated), A055948. Sequence in context: A196330 A332462 A256662 * A331633 A073740 A239956 Adjacent sequences:  A055941 A055942 A055943 * A055945 A055946 A055947 KEYWORD base,nonn AUTHOR Henry Bottomley, Jul 18 2000 STATUS approved

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Last modified September 25 16:17 EDT 2021. Contains 347658 sequences. (Running on oeis4.)