A088383 Numbers greater than the 4th power of their smallest prime-factor.

18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 87, 88, 90, 92, 93, 94, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 116, 117, 118, 120, 122, 123, 124, 126

Offset

1,1

Comments

a(n) > A020639(a(n))^4 = A088379(a(n)); complement of A088382.

a(n) > A088382(k) for n <= 67, a(n) < A088382(k) for n > 67.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Mathematica

Select[Range[200], #>(FactorInteger[#][[1, 1]])^4&] (* Harvey P. Dale, Aug 15 2015 *)

Prog

(Haskell)
a088383 n = a088383_list !! (n-1)
a088383_list = [x | x <- [1..], x  a020639 x ^ 4]
-- Reinhard Zumkeller, Feb 06 2015

Crossrefs

Cf. A088381, A080257, A020639, A088379, A088382.

Sequence in context: A332925 A333973 A027887 * A067496 A054565 A295745

Adjacent sequences: A088380 A088381 A088382 * A088384 A088385 A088386

Keyword

nonn

Author

Reinhard Zumkeller, Sep 28 2003

Status

approved