A074451 Non-cubefree noncubes.

16, 24, 32, 40, 48, 54, 56, 72, 80, 81, 88, 96, 104, 108, 112, 120, 128, 135, 136, 144, 152, 160, 162, 168, 176, 184, 189, 192, 200, 208, 224, 232, 240, 243, 248, 250, 256, 264, 270, 272, 280, 288, 296, 297, 304, 312, 320, 324, 328, 336, 344, 351, 352, 360

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Formula

For n > 35, a(n) < 7n. Asymptotically, a(n) ~ kn with k = 1/A085541 = 5.722.... - Charles R Greathouse IV, Oct 16 2015

Prog

(PARI) is(n)=my(f=factor(n)[, 2]); f%3 && vecmax(f)>2 \\ Charles R Greathouse IV, Oct 16 2015

Crossrefs

Intersection of A046099 and A007412.

Cf. A051144, A085541.

Sequence in context: A140349 A369353 A088493 * A253782 A247065 A082803

Adjacent sequences: A074448 A074449 A074450 * A074452 A074453 A074454

Keyword

nonn

Author

Reinhard Zumkeller, Sep 25 2002

Status

approved