A329528 Numbers k such that the k-th lucky number (A000959) is divisible by k.

1, 7, 39, 41, 225, 6257, 33463, 33471, 182157, 182167, 1008899, 32487701

Offset: 1

Author

Amiram Eldar, Nov 15 2019

Keywords

• nonn
• more

Comments

The corresponding lucky numbers, A000959(a(n)) are 1, 21, 195, 205, 1575, 68827, 435019, 435123, 2732355, 2732505, 17151283, 682241721, ...

The corresponding quotients A000959(a(n))/a(n) are 1, 3, 5, 5, 7, 11, 13, 13, 15, 15, 17, 21, ...

a(13) > 4*10^9, if it exists. - Giovanni Resta, May 10 2020

Examples

			7 is in the sequence since the 7th lucky number, 21 = 3 * 7 is divisible by 7.
		

Crossrefs

Cf. A000959.

Cf. also A329529.