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

1, 3, 21, 189, 36855, 773955

Offset: 1

Author

Naohiro Nomoto, Oct 09 2000

Keywords

• nonn
• hard

Comments

If it exists, a(7) > 732374267624.

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

Examples

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

Crossrefs

Cf. A000959, A256625.

Extensions

One more term from Sascha Kurz, Oct 12 2001