A171425 Divisors of 60^2 that are not divisors of 60.

8, 9, 16, 18, 24, 25, 36, 40, 45, 48, 50, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600

Offset: 1

Author

Reinhard Zumkeller, Dec 08 2009

Keywords

• fini
• full
• nonn
• easy

Comments

Set difference A035303 minus A018266;

sequence is finite with last term a(33)=3600=60^2; A055205(60)=33.

Programs

PARI

setminus(divisors(3600),divisors(60)) \\ Charles R Greathouse IV, Jun 21 2017