login
A222218
In the number n, replace all (decimal) digits '0' with '9' and vice versa.
1
9, 1, 2, 3, 4, 5, 6, 7, 8, 0, 19, 11, 12, 13, 14, 15, 16, 17, 18, 10, 29, 21, 22, 23, 24, 25, 26, 27, 28, 20, 39, 31, 32, 33, 34, 35, 36, 37, 38, 30, 49, 41, 42, 43, 44, 45, 46, 47, 48, 40, 59, 51, 52, 53, 54, 55, 56, 57, 58, 50, 69, 61, 62, 63, 64, 65, 66, 67, 68, 60, 79, 71, 72, 73, 74, 75
OFFSET
0,1
COMMENTS
The map which is applied to primes in A171049.
LINKS
MATHEMATICA
a[n_]:= IntegerDigits[n]/.{0->9, 9->0} // FromDigits; Table[a[n], {n, 0, 80}] (* Vincenzo Librandi, Jul 39 2013 *)
PROG
(PARI) A222218(n, d=[9, 1, 2, 3, 4, 5, 6, 7, 8, 0])={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)
KEYWORD
nonn,easy,base
AUTHOR
M. F. Hasler, Feb 12 2013
STATUS
approved