OFFSET
1,1
COMMENTS
Reason for considering sequence: if even numbers are equally distributed mod p>2, then the number of integers of this set up to a certain number would tend to be equal to the number of primes. Therefore it could be useful if we know the primes up to a given number x to estimate the primes to 2x
EXAMPLE
For instance 2*3, 2*5, 2*7, ..., 4*5, 4*7, 4*11, ..., 8*11, 8*13, ..., 16*17, 16*19, ...
MATHEMATICA
f[n_] := Table[2^n*Prime[i], {i, PrimePi[2^n] + 1, 35}]; Take[ Sort[ Flatten[ Table[ f[n], {n, 1, 4}]]], 57]
CROSSREFS
KEYWORD
nonn
AUTHOR
Alberto Zelaya (azelaya(AT)xtra.co.nz), Jul 17 2003
EXTENSIONS
Edited and extended by Robert G. Wilson v, Jul 19 2003
STATUS
approved