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A051024 Values of n for which pi_{4,3}(p)-pi_{4,1}(p)=-1, where p is the n-th prime and pi_{m,a}(x) is the number of primes <= x which are congruent to a (mod m). +0
3
2946, 50378, 50380, 50382, 50392, 50414, 50418, 50420, 50422, 50424, 50426, 50428, 50430, 50436, 50438, 50446, 50448, 50450, 50822, 50832, 50834, 50842, 50844, 50852, 50854, 50856, 50858, 50862, 50864, 50866, 50872, 50892, 50902 (list; graph; listen)
OFFSET

1,1

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

MATHEMATICA

For[i=2; d=0, True, i++, d+=Mod[Prime[i], 4]-2; If[d==-1, Print[i]]]

CROSSREFS

Cf. A051025, A007350, A066520.

Cf. A156749 Sequence showing Chebyshev bias in prime races (mod 4). [From Daniel Forgues (squid(AT)zensearch.com), Mar 26 2009]

Sequence in context: A054832 A068290 A096628 this_sequence A125907 A025514 A054833

Adjacent sequences: A051021 A051022 A051023 this_sequence A051025 A051026 A051027

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

EXTENSIONS

Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Mar 05 2002

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.


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