A096628 Integers k for which {prime(1), prime(2), ..., prime(k)} (mod 4) is biased towards 1.

2946, 50378, 50380, 50382, 50383, 50384, 50385, 50386, 50387, 50388, 50389, 50390, 50391, 50392, 50414, 50415, 50416, 50417, 50418, 50419, 50420, 50421, 50422, 50424, 50426, 50428, 50430, 50436, 50438, 50446, 50447, 50448, 50450

Offset

1,1

Comments

Indices of negative terms in A038698. - Jianing Song, Feb 20 2019

Links

Robert Israel, Table of n, a(n) for n = 1..7804

Eric Weisstein's World of Mathematics, Chebyshev Bias

Maple

R:= NULL: count:= 0: v:= 0: p:= 2:
for i from 2 while count < 100 do
  p:= nextprime(p);
  if p mod 4 = 3 then v:= v+1
  else v:= v-1
  fi;
  if v < 0 then R:= R, i; count:= count+1 fi
od:
R; # Robert Israel, Apr 17 2023

Crossrefs

Cf. A007350, A038691, A038698, A051024, A051025, A066520, A199547.

Sequence in context: A068290 A231313 A259999 * A051024 A177087 A125907

Adjacent sequences: A096625 A096626 A096627 * A096629 A096630 A096631

Keyword

nonn

Author

Eric W. Weisstein, Jul 01 2004

Status

approved