C-Sharp/Algorithms/Sequences/BinaryPrimeConstantSequence.cs at master · TheAlgorithms/C-Sharp · GitHub

Name: C-Sharp/Algorithms/Sequences/BinaryPrimeConstantSequence.cs at master · TheAlgorithms/C-Sharp · GitHub
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usingSystem.Collections.Generic;
usingSystem.Numerics;

namespaceAlgorithms.Sequences;

/// <summary>
/// <para>
/// Sequence of binary prime constant
/// (Characteristic function of primes: 1 if n is prime, else 0).
/// </para>
/// <para>
/// Wikipedia: https://wikipedia.org/wiki/Prime_constant.
/// </para>
/// <para>
/// OEIS: https://oeis.org/A010051.
/// </para>
/// </summary>
publicclassBinaryPrimeConstantSequence:ISequence
{
/// <summary>
/// Gets sequence of binary prime constant.
/// </summary>
publicIEnumerable<BigInteger>Sequence
{
get
{
ISequenceprimes=newPrimesSequence();
varn=newBigInteger(0);

foreach(varpinprimes.Sequence)
{
for(n++;n<p;n++)
{
yieldreturn0;
}

yieldreturn1;
}
}
}
}