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A222252 In the number n, replace all (decimal) digits '7' with '8' and vice versa. 1
0, 1, 2, 3, 4, 5, 6, 8, 7, 9, 10, 11, 12, 13, 14, 15, 16, 18, 17, 19, 20, 21, 22, 23, 24, 25, 26, 28, 27, 29, 30, 31, 32, 33, 34, 35, 36, 38, 37, 39, 40, 41, 42, 43, 44, 45, 46, 48, 47, 49, 50, 51, 52, 53, 54, 55, 56, 58, 57, 59, 60, 61, 62, 63, 64, 65, 66, 68, 67, 69, 80, 81, 82, 83, 84, 85 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

The map which is applied to primes in A171048.

LINKS

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

MATHEMATICA

a[n_]:= IntegerDigits[n]/.{7->8, 8->7} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 29 2013 *)

PROG

(PARI) A222252(n, d=[0, 1, 2, 3, 4, 5, 6, 8, 7, 9])=sum(i=1, #n=digits(n), d[n[i]+1]*10^(#n-i)) \\ gives correct value 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: A308071 A030555 A100708 * A130371 A130372 A089865

Adjacent sequences:  A222249 A222250 A222251 * A222253 A222254 A222255

KEYWORD

nonn,base,easy

AUTHOR

M. F. Hasler, Feb 13 2013

EXTENSIONS

Corrected term by Vincenzo Librandi, Jul 29 2013

STATUS

approved

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Last modified September 22 16:17 EDT 2020. Contains 337291 sequences. (Running on oeis4.)