A168031 Primes p for which floor(E*p) is prime.

2, 5, 7, 11, 47, 89, 97, 113, 163, 227, 283, 367, 373, 431, 439, 503, 643, 823, 877, 887, 941, 991, 1013, 1049, 1093, 1303, 1327, 1439, 1523, 1567, 1609, 1879, 1901, 1949, 1951, 1993, 2113, 2179, 2221, 2347, 2399, 2411, 2477, 2503, 2591, 2689, 2711, 2797

Offset

1,1

Links

G. C. Greubel, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[6! ]], PrimeQ[Floor[E*# ]]&]

Crossrefs

Sequence in context: A235468 A229209 A227613 * A260108 A265791 A039679

Adjacent sequences: A168028 A168029 A168030 * A168032 A168033 A168034

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Nov 17 2009

Status

approved