A109988 3-almost primes (A014612) ordered alphabetically by where they occur in A000052.

8, 18, 50, 52, 45, 44, 42, 98, 99, 92, 70, 78, 75, 76

Offset: 1

Author

Jonathan Vos Post, Jul 07 2005

Keywords

• base
• easy
• nonn
• word

Comments

A109986 is primes ordered alphabetically by where they occur in A000052. A109987 is semiprimes ordered alphabetically by where they occur in A000052. A109989 is 4-almost primes ordered alphabetically by where they occur in A000052.

Examples

			a(1) = 8 because eight is the first 3-almost prime in alphabetical order.
a(4) = 18 because eighteen is the first 2-digit 3-almost prime in alphabetical order.
		

Crossrefs

Cf. A000052, A014612, A109986, A109987.