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A222238
In the number n, replace all (decimal) digits '3' with '8' and vice versa.
1
0, 1, 2, 8, 4, 5, 6, 7, 3, 9, 10, 11, 12, 18, 14, 15, 16, 17, 13, 19, 20, 21, 22, 28, 24, 25, 26, 27, 23, 29, 80, 81, 82, 88, 84, 85, 86, 87, 83, 89, 40, 41, 42, 48, 44, 45, 46, 47, 43, 49, 50, 51, 52, 58, 54, 55, 56, 57, 53, 59, 60, 61, 62, 68, 64, 65, 66, 67, 63, 69, 70, 71, 72, 78, 74, 75
OFFSET
0,3
COMMENTS
The map which is applied to primes in A171044.
LINKS
MATHEMATICA
a[n_]:= IntegerDigits[n]/.{3->8, 8->3} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 30 2013 *)
PROG
(PARI) A222238(n, d=[0, 1, 2, 8, 4, 5, 6, 7, 3, 9])={sum(i=1, #n=digits(n), d[n[i]+1]*10^(#n-i), !n*d[1])} \\ N.B.: digits(0)=[] in PA RI (v.2.6)
KEYWORD
nonn,base,easy
AUTHOR
M. F. Hasler, Feb 13 2013
STATUS
approved