The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A338715 Smallest prime ending with decimal expansion of n, for n relatively prime to 10. 2
 11, 3, 7, 19, 11, 13, 17, 19, 421, 23, 127, 29, 31, 233, 37, 139, 41, 43, 47, 149, 151, 53, 157, 59, 61, 163, 67, 269, 71, 73, 277, 79, 181, 83, 487, 89, 191, 193, 97, 199, 101, 103, 107, 109, 2111, 113, 1117, 3119, 3121, 1123, 127, 1129, 131, 4133, 137, 139, 2141, 2143, 5147, 149, 151, 1153, 157 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) exists by Dirichlet's theorem. LINKS Robert Israel, Table of n, a(n) for n = 1..10000 MAPLE N:= 100: # for a(1) to a(N) V:= Vector(N): count:= 0: for n from 1 while count < N do   if igcd(n, 10)=1 then     count:= count+1;     d:= ilog10(n)+1;     for x from n by 10^d do       if isprime(x) then V[count]:= x; break fi     od   fi od: convert(V, list); # Robert Israel, Nov 11 2020 CROSSREFS See A245193, A337834, A338716 for other versions. Sequence in context: A344542 A334132 A245193 * A258190 A244471 A083968 Adjacent sequences:  A338712 A338713 A338714 * A338716 A338717 A338718 KEYWORD nonn,base,look AUTHOR N. J. A. Sloane, Nov 11 2020. EXTENSIONS More terms from Robert Israel, Nov 11 2020 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 18 15:05 EDT 2021. Contains 345120 sequences. (Running on oeis4.)