A068937 Numbers having the sum of distinct prime factors not less than the sum of exponents in prime factorization, A008472(n)>=A001222(n).

1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76

Offset

1,2

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Mathematica

Select[Range[76], Plus @@ (f = FactorInteger[#])[[;; , 1]] >= Plus @@ f[[;; , 2]] &] (* Amiram Eldar, Nov 14 2019 *)

Crossrefs

Cf. A068935, A068936, A054411, A068938.

Sequence in context: A118065 A020661 A284837 * A285316 A362147 A361395

Adjacent sequences: A068934 A068935 A068936 * A068938 A068939 A068940

Keyword

nonn

Author

Reinhard Zumkeller, Mar 08 2002

Extensions

More terms from David Wasserman, Jun 17 2002

Status

approved