1,2

Table of n, a(n) for n=1..51.

S. Harvey, Carol and Kynea Primes.

(PARI) is(n)=ispseudoprime((273*2^n-1)^2-2) \\ Charles R Greathouse IV, Feb 19 2016

Sequence in context: A047561 A285567 A153123 * A047285 A191215 A190847

Adjacent sequences: A100910 A100911 A100912 * A100914 A100915 A100916

nonn

Ray Chandler, Nov 21 2004

approved