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 A273044 Discriminator of A003095. 2
 1, 2, 5, 9, 10, 10, 17, 29, 29, 29, 47, 47, 47, 61, 71, 71, 71, 101, 109, 121, 121, 121, 121, 139, 139, 139, 139, 139, 139, 139, 139, 139, 139, 274, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The discriminator of a sequence is the least integer k such that the first n terms are pairwise incongruent, modulo k. LINKS Robert Israel, Table of n, a(n) for n = 1..10000 MAPLE N:= 1000: # to get a(1)..a(n) nmax:= 0: for m from 1 while nmax <= N do a:= 1 mod m; A:= {a}; for n from 1 while nops(A) = n do a:= a^2 +1 mod m; A:= A union {a}; od: for k from nmax+1 to n-1 do v[k]:= m od: nmax:= max(nmax, n-1); od: seq(v[k], k=1..N); # Robert Israel, May 13 2016 CROSSREFS Cf. A003095 Sequence in context: A002580 A196408 A091656 * A133508 A125969 A070240 Adjacent sequences: A273041 A273042 A273043 * A273045 A273046 A273047 KEYWORD nonn AUTHOR Jeffrey Shallit, May 13 2016 EXTENSIONS a(31)-a(56) from Robert Israel, May 13 2016 STATUS approved

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Last modified May 23 22:02 EDT 2024. Contains 372765 sequences. (Running on oeis4.)