A271444 Smallest of 4 consecutive numbers each divisible by a cube.

22624, 355374, 885624, 912247, 1558248, 1642624, 1728375, 1761991, 2068373, 2485375, 2948373, 2987872, 3072248, 3073623, 3243750, 3571749, 3744872, 3772248, 3916374, 4231248, 4442877, 4503247, 4730373, 4757750, 5301125, 5344623, 5516125, 5812477, 6017247

Offset

1,1

Links

Giovanni Resta, Table of n, a(n) for n = 1..10000

Example

a(1)=22624 is the smallest cubeful number followed by other 3 cubeful numbers. They are divisible by 2^5, 5^3, 3^3, and 11^3, respectively.

Mathematica

cubQ[n_] := Max[Last /@ FactorInteger[n]] > 2; Select[Range[10^6], cubQ[#] && cubQ[# + 1] && cubQ[# + 2] && cubQ[# + 3] &]

Crossrefs

Cf. A046099, A068140, A122692, A271445, A271446, A271447, A271443.

Sequence in context: A235067 A233856 A100420 * A335397 A251789 A105378

Adjacent sequences: A271441 A271442 A271443 * A271445 A271446 A271447

Keyword

nonn

Author

Giovanni Resta, Apr 26 2016

Status

approved