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A070758 Values of floor((3/2)^n) that are composite. 4
25, 38, 57, 86, 129, 194, 291, 437, 656, 985, 1477, 2216, 3325, 11222, 16834, 25251, 37876, 56815, 85222, 127834, 191751, 287626, 431439, 647159, 970739, 1456109, 2184164, 3276246, 4914369, 7371554, 11057332, 16585998, 24878997, 37318496 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, E19

LINKS

Robert Israel, Table of n, a(n) for n = 1..5649

Eric Weisstein's World of Mathematics, Power Floors

MAPLE

remove(isprime, [seq(floor((3/2)^n), n=2..100)]); # Robert Israel, Oct 30 2019

MATHEMATICA

Select[Floor[(3/2)^Range[50]], CompositeQ] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 11 2017 *)

CROSSREFS

Cf. A043037, A070759, A067904.

Sequence in context: A120148 A038516 A080386 * A104667 A066844 A255608

Adjacent sequences:  A070755 A070756 A070757 * A070759 A070760 A070761

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, May 04 2002

STATUS

approved

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Last modified November 19 16:37 EST 2019. Contains 329323 sequences. (Running on oeis4.)