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A222239 In the number n, replace all (decimal) digits '3' with '9' and vice versa. 1
0, 1, 2, 9, 4, 5, 6, 7, 8, 3, 10, 11, 12, 19, 14, 15, 16, 17, 18, 13, 20, 21, 22, 29, 24, 25, 26, 27, 28, 23, 90, 91, 92, 99, 94, 95, 96, 97, 98, 93, 40, 41, 42, 49, 44, 45, 46, 47, 48, 43, 50, 51, 52, 59, 54, 55, 56, 57, 58, 53, 60, 61, 62, 69, 64, 65, 66, 67, 68, 63, 70, 71, 72, 79, 74, 75 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

The map which is applied to primes in A171052.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

MATHEMATICA

a[n_]:= IntegerDigits[n]/.{3->9, 9->3} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 30 2013 *)

PROG

(PARI) A222239(n, d=[0, 1, 2, 9, 4, 5, 6, 7, 8, 3])=sum(i=1, #n=digits(n), d[n[i]+1]*10^(#n-i)) \\ gives correct result for n=0 iff d[1]=0, since digits(0)=[] in PARI (v.2.6)

CROSSREFS

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

Sequence in context: A016642 A070700 A248682 * A281384 A203648 A300889

Adjacent sequences:  A222236 A222237 A222238 * A222240 A222241 A222242

KEYWORD

nonn,base,easy

AUTHOR

M. F. Hasler, Feb 13 2013

STATUS

approved

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Last modified March 23 18:13 EDT 2019. Contains 321433 sequences. (Running on oeis4.)