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 A056965 a(n) = n - (reversal of digits of n). 23
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, -9, -18, -27, -36, -45, -54, -63, -72, 18, 9, 0, -9, -18, -27, -36, -45, -54, -63, 27, 18, 9, 0, -9, -18, -27, -36, -45, -54, 36, 27, 18, 9, 0, -9, -18, -27, -36, -45, 45, 36, 27, 18, 9, 0, -9, -18, -27, -36, 54, 45, 36, 27, 18, 9, 0, -9, -18, -27, 63, 54, 45, 36, 27, 18, 9, 0, -9, -18, 72, 63, 54 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,11 COMMENTS a(n) is a multiple of 9. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 FORMULA a(n) = n - A004086(n) = 2*n - A056964(n). EXAMPLE a(17) = 17 - 71 = -54. MAPLE a:= n-> (s-> n-parse(cat(s[-i]\$i=1..length(s))))(""||n): seq(a(n), n=0..82);  # Alois P. Heinz, Jul 11 2021 MATHEMATICA Table[n - FromDigits[Reverse[IntegerDigits[n]]], {n, 0, 82}] (* Jayanta Basu, Jul 11 2013 *) PROG (Haskell) a056965 n = n - a004086 n  -- Reinhard Zumkeller, Sep 17 2013 (Python) def a(n): return n - int(str(n)[::-1]) # Osman Mustafa Quddusi, Jul 11 2021 CROSSREFS Cf. A004086, A056964, A068396, A151949, A265326. Sequence in context: A273086 A332093 A151949 * A341486 A320379 A308102 Adjacent sequences:  A056962 A056963 A056964 * A056966 A056967 A056968 KEYWORD base,sign,look AUTHOR Henry Bottomley, Jul 18 2000 STATUS approved

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Last modified August 1 14:14 EDT 2021. Contains 346391 sequences. (Running on oeis4.)