Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".
R. K. Guy, Unsolved Problems in Number Theory, E19.
Table of n, a(n) for n=1..69.
Eric Weisstein's World of Mathematics, Floor Function
Select[Range, CompositeQ[Floor[(3/2)^#]]&] (* Harvey P. Dale, Sep 23 2014 *)
(PARI) is(n)=n>7&&!isprime(floor(1.5^n)) \\ Charles R Greathouse IV, Oct 27 2011
Sequence in context: A004449 A168098 A020722 * A089017 A182361 A023391
Adjacent sequences: A046034 A046035 A046036 * A046038 A046039 A046040
Eric W. Weisstein