A140605 a(n) = A003680(n)/A005179(n), or 0 if quotient is not an integer.

2, 3, 3, 4, 3, 5, 3, 5, 5, 5, 3, 6, 3, 5, 5, 7, 3, 7, 3, 7, 5, 5, 3, 7, 5, 5, 7, 7, 3, 7, 3, 9, 5, 5, 5, 8, 3, 5, 5, 9, 3, 7, 3, 7, 7, 5, 3, 11, 5, 7, 5, 7, 3, 8, 5, 9, 5, 5, 3, 11, 3, 5, 7, 11, 5, 7, 3, 7, 5, 7, 3, 11, 3, 5, 7, 7, 5, 7, 3, 11, 8, 5, 3, 11, 5, 5, 5, 9, 3, 11, 5, 7, 5, 5, 5, 12, 3, 7, 7, 11, 3

Offset: 1

Author

J. Lowell, Jul 07 2008

Keywords

• nonn

Comments

a(810) = 0; the quotient is the non-integer 144/11.

n=810 is the only such case among the first 1000 terms. - Antti Karttunen, Oct 21 2017

a(n) = 0 for n in {810, 10206, 13608, 18225, 24300, 32400, ...}. - David A. Corneth, Oct 05 2022

Examples

			a(10) = 5 because A003680(10) = 240 and A005179(10) = 48 and 240/48=5.
		

Links

• David A. Corneth, Table of n, a(n) for n = 1..10000 (first 1000 terms from Antti Karttunen)

Crossrefs

Cf. A003680, A005179.

Extensions

More terms from R. J. Mathar, Feb 19 2009