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 A222211 In the number n, replace all (decimal) digits '0' with '2' and vice versa. 1
 2, 1, 0, 3, 4, 5, 6, 7, 8, 9, 12, 11, 10, 13, 14, 15, 16, 17, 18, 19, 2, 1, 0, 3, 4, 5, 6, 7, 8, 9, 32, 31, 30, 33, 34, 35, 36, 37, 38, 39, 42, 41, 40, 43, 44, 45, 46, 47, 48, 49, 52, 51, 50, 53, 54, 55, 56, 57, 58, 59, 62, 61, 60, 63, 64, 65, 66, 67, 68, 69, 72, 71, 70, 73, 74, 75 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS The map which is applied to primes in A171014. Programs should omit leading '0' digits in the resulting terms. - Georg Fischer, Apr 06 2019 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 MATHEMATICA a[n_]:= IntegerDigits[n]/.{0->2, 2->0} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 29 2013 *) PROG (PARI) A222211(n, d=[2, 1, 0, 3, 4, 5, 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) (Perl) print join(", ", map{tr/02/20/; \$_+0}(0..75)); # Georg Fischer, Apr 06 2019 CROSSREFS Cf. A222210-A222254 (other digit pairs), A171013-A171057, A175770 (in prime numbers). Sequence in context: A135488 A099493 A088523 * A145460 A292978 A202178 Adjacent sequences:  A222208 A222209 A222210 * A222212 A222213 A222214 KEYWORD nonn,base,easy AUTHOR M. F. Hasler, Feb 12 2013 STATUS approved

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Last modified June 1 18:43 EDT 2020. Contains 334762 sequences. (Running on oeis4.)