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A222235 In the number n, replace all (decimal) digits '3' with '5' and vice versa. 2

%I #11 Mar 31 2017 00:20:14

%S 0,1,2,5,4,3,6,7,8,9,10,11,12,15,14,13,16,17,18,19,20,21,22,25,24,23,

%T 26,27,28,29,50,51,52,55,54,53,56,57,58,59,40,41,42,45,44,43,46,47,48,

%U 49,30,31,32,35,34,33,36,37,38,39,60,61,62,65,64,63,66,67,68,69,70,71,72,75,74,73

%N In the number n, replace all (decimal) digits '3' with '5' and vice versa.

%C The map which is applied to primes in A171026.

%H Vincenzo Librandi, <a href="/A222235/b222235.txt">Table of n, a(n) for n = 0..1000</a>

%t a[n_]:= IntegerDigits[n]/.{3->5, 5->3} // FromDigits; Table[a[n], {n, 0, 80}] (* _Vincenzo Librandi_, Jul 30 2013 *)

%o (PARI) A222235(n,d=[0,1,2,5,4,3,6,7,8,9])={sum(i=1,#n=digits(n),d[n[i]+1]*10^(#n-i),!n*d[1])} \\ N.B.: digits(0)=[] in PARI (v.2.6)

%Y Cf. A222210-A222254; A171013-A171016, A175770, A171018-A171057.

%K nonn,base,easy

%O 0,3

%A _M. F. Hasler_, Feb 12 2013

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)