A 'fixed k' sieve for multiple integer sequences in n of
the form k*b^n+c, where k < 2^64, |c| < 2^63, b
Srsieve was originally developed to speed up sieving for
the Sierpinski/Riesel base 5 projects, which seek primes
of the form k*5^n+/-1 for certain even values of k.
Some specialised versions of the program are faster in
sr1sieve: A single sequence k*b^n+/-1 with k < 2^64, b
sr2sieve: Multiple sequences k*b^n+/-1 or b^n+/-k with k
< 2^32, b < 2^32.
sr5sieve: Multiple base 5 sequences k*5^n+/-1 with k <