A222230 In the number n, replace all (decimal) digits '2' with '6' and vice versa.

0, 1, 6, 3, 4, 5, 2, 7, 8, 9, 10, 11, 16, 13, 14, 15, 12, 17, 18, 19, 60, 61, 66, 63, 64, 65, 62, 67, 68, 69, 30, 31, 36, 33, 34, 35, 32, 37, 38, 39, 40, 41, 46, 43, 44, 45, 42, 47, 48, 49, 50, 51, 56, 53, 54, 55, 52, 57, 58, 59, 20, 21, 26, 23, 24, 25, 22, 27, 28, 29, 70, 71, 76, 73, 74, 75

Offset

0,3

Comments

The map which is applied to primes in A171030.

Links

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

Mathematica

a[n_]:= IntegerDigits[n]/.{2->6, 6->2} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 30 2013 *)

Prog

(PARI) A222230(n, d=[0, 1, 6, 3, 4, 5, 2, 7, 8, 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: A257235 A350131 A167052 * A365066 A198110 A290795

Adjacent sequences: A222227 A222228 A222229 * A222231 A222232 A222233

Keyword

nonn,base,easy

Author

M. F. Hasler, Feb 12 2013

Status

approved