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.

Showing 1-1 of 1 results.

A356062 a(n) is the smallest integer that has exactly n Lucas divisors (A000032).

Original entry on oeis.org

1, 2, 4, 12, 36, 252, 2772, 52668, 1211364, 35129556, 1089016236, 44649665676, 2098534286772, 417608323067628, 88115356167269508, 24760415083002731748, 7948093241643876891108, 4140956578896459860267268
Offset: 1

Views

Author

Bernard Schott, Jul 25 2022

Keywords

Comments

The new Lucas numbers that appear at each step are in A356063.

Examples

			36 is divisible by 1, 2, 3, 4, 18, which are all Lucas numbers, and no integer < 36 has 5 divisors that are Lucas numbers, hence a(5) = 36.

Crossrefs

Cf. A000032, A304092, A356063.
Similar sequences: A087997 (palindromes), A129655 (Fibonacci), A333456 (Niven).

Extensions

a(10) from Amiram Eldar, Jul 25 2022
a(11)-a(18) from David A. Corneth, Jul 27 2022
Showing 1-1 of 1 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.