A380526 - OEIS

%I #8 Feb 09 2025 14:23:10

%S 36465,452670,485970,1627782,3153345,3257170,3848370,4324470,4891470,

%T 4905762,5406270,5413902,6448794,7664595,7669545,7834290,8884869,

%U 8951370,15031527,16408770,32288577,34805967,36841470,39912522,42356814,43724265,43978398,48547670,54287682,55924170,61226790,61406295,62976246,64326426

%N Terms of A380525 with at least 5 prime factors.

%C The first fifteen terms with 6 prime factors are: 3257170, 1083680466, 1153415670, 1160328390, 1163972490, 1339386378, 1342341114, 2299929898, 2333530590, 3630735690, 4611660990, 4766752978, 10592470770, 24366944670, 31075228770.

%C If there is a term with 7 or more prime factors, it is larger than 2^35.

%H Antti Karttunen, <a href="/A380526/b380526.txt">Table of n, a(n) for n = 1..699</a>

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>.

%F {k such that A380524(k) = 1 and A001222(k) >= 5}.

%Y Cf. A001221, A001222, A380524, A380525.

%K nonn

%O 1,1

%A _Antti Karttunen_, Feb 09 2025