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A055948 n + reversal of base 4 digits of n (written in base 10).

%I A055948 #20 Aug 08 2024 06:37:20
%S A055948 0,2,4,6,5,10,15,20,10,15,20,25,15,20,25,30,17,34,51,68,25,42,59,76,
%T A055948 33,50,67,84,41,58,75,92,34,51,68,85,42,59,76,93,50,67,84,101,58,75,
%U A055948 92,109,51,68,85,102,59,76,93,110,67,84,101,118,75,92,109,126,65,130,195
%N A055948 n + reversal of base 4 digits of n (written in base 10).
%C A055948 If n has an even number of digits in base 4 then a(n) is a multiple of 5.
%H A055948 Reinhard Zumkeller, <a href="/A055948/b055948.txt">Table of n, a(n) for n = 0..10000</a>
%H A055948 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a>
%F A055948 a(n) = n + A030103(n).
%t A055948 Table[n+FromDigits[Reverse[IntegerDigits[n,4]],4],{n,0,70}] (* _Harvey P. Dale_, Nov 24 2021 *)
%o A055948 (Haskell)
%o A055948 a055948 n = n + a030103 n
%o A055948 -- _Reinhard Zumkeller_, Oct 10 2011
%Y A055948 Cf. A030103, A056964.
%Y A055948 Cf. A035524 (iterated).
%K A055948 base,nonn,look
%O A055948 0,2
%A A055948 _Henry Bottomley_, Jul 18 2000