A380526 Terms of A380525 with at least 5 prime factors.

36465, 452670, 485970, 1627782, 3153345, 3257170, 3848370, 4324470, 4891470, 4905762, 5406270, 5413902, 6448794, 7664595, 7669545, 7834290, 8884869, 8951370, 15031527, 16408770, 32288577, 34805967, 36841470, 39912522, 42356814, 43724265, 43978398, 48547670, 54287682, 55924170, 61226790, 61406295, 62976246, 64326426

Offset

1,1

Comments

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

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

Links

Antti Karttunen, Table of n, a(n) for n = 1..699

Index entries for sequences related to primorial base.

Formula

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

Crossrefs

Cf. A001221, A001222, A380524, A380525.

Sequence in context: A234858 A234856 A222952 * A204967 A011771 A011770

Adjacent sequences: A380523 A380524 A380525 * A380527 A380528 A380529

Keyword

nonn

Author

Antti Karttunen, Feb 09 2025

Status

approved