A057616 Lucky numbers that are the product of the first m lucky numbers for some m.

1, 3, 21, 189, 36855, 773955

Offset

1,2

Comments

If it exists, a(7) > 732374267624.

Intersection of A000959 and A256625. - Chayim Lowen, Jul 14 2015

Links

Table of n, a(n) for n=1..6.

Example

1 * 3 * 7 * 9 * 13 * 15 = 36855, which is a lucky number.

Crossrefs

Cf. A000959, A256625.

Sequence in context: A358990 A059863 A256625 * A212072 A212029 A219535

Adjacent sequences: A057613 A057614 A057615 * A057617 A057618 A057619

Keyword

nonn,hard

Author

Naohiro Nomoto, Oct 09 2000

Extensions

One more term from Sascha Kurz, Oct 12 2001

Status

approved