A081703 Largest proper divisor of the n-th Carmichael number (A002997).

187, 221, 247, 493, 403, 943, 1273, 2117, 2263, 2257, 5863, 3589, 7519, 20915, 9139, 6851, 14443, 8917, 18031, 9553, 24583, 26923, 6161, 55709, 7957, 24217, 17587, 26197, 12871, 10001, 89813, 13213, 16531, 40837, 42517, 218867, 59891, 95719

Offset: 1

Author

Lekraj Beedassy, Apr 02 2003

Keywords

• nonn

Examples

			The first Carmichael number is 3*11*17, so a(1) = 11*17.
		

Links

• Robert Israel, Table of n, a(n) for n = 1..10000
• J. Perry, Carmichael factors

Crossrefs

Cf. A002997, A032742, A141710.

Programs

Maple

seq(A002997[n]/min(numtheory:-factorset(A002997[n])), n=1..100); # Robert Israel, Apr 13 2017

Formula

a(n) = A032742(A002997(n)) - David Wasserman, Jun 18 2004

a(n) = A002997(n)/A141710(n). - Robert Israel, Apr 13 2017

Extensions

More terms from David Wasserman, Jun 18 2004