cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

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%I A068937 #7 Nov 14 2019 09:40:08
%S A068937 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,
%T A068937 28,29,30,31,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
%U A068937 52,53,54,55,56,57,58,59,60,61,62,63,65,66,67,68,69,70,71,72,73,74,75,76
%N A068937 Numbers having the sum of distinct prime factors not less than the sum of exponents in prime factorization, A008472(n)>=A001222(n).
%H A068937 Amiram Eldar, <a href="/A068937/b068937.txt">Table of n, a(n) for n = 1..10000</a>
%t A068937 Select[Range[76], Plus @@ (f = FactorInteger[#])[[;;,1]] >= Plus @@ f[[;;,2]] &] (* _Amiram Eldar_, Nov 14 2019 *)
%Y A068937 Cf. A068935, A068936, A054411, A068938.
%K A068937 nonn
%O A068937 1,2
%A A068937 _Reinhard Zumkeller_, Mar 08 2002
%E A068937 More terms from _David Wasserman_, Jun 17 2002