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In the number n, replace all (decimal) digits '0' with '6' and vice versa.
1

%I #11 Mar 31 2017 00:30:41

%S 6,1,2,3,4,5,0,7,8,9,16,11,12,13,14,15,10,17,18,19,26,21,22,23,24,25,

%T 20,27,28,29,36,31,32,33,34,35,30,37,38,39,46,41,42,43,44,45,40,47,48,

%U 49,56,51,52,53,54,55,50,57,58,59,6,1,2,3,4,5,0,7,8,9,76,71,72,73,74,75

%N In the number n, replace all (decimal) digits '0' with '6' and vice versa.

%C The map which is applied to primes in A171028.

%H Vincenzo Librandi, <a href="/A222215/b222215.txt">Table of n, a(n) for n = 0..1000</a>

%t a[n_]:= IntegerDigits[n]/.{0->6, 6->0} // FromDigits; Table[a[n], {n, 0, 80}] (* _Vincenzo Librandi_, Jul 29 2013 *)

%o (PARI) A222215(n,d=[6,1,2,3,4,5,0,7,8,9])={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 0,1

%A _M. F. Hasler_, Feb 12 2013