A077332 Smallest number beginning with 7 and having exactly n distinct prime divisors.

7, 72, 70, 714, 7140, 71610, 746130, 70136220, 703600590, 70015935990, 700288518930, 7420738134810, 701098433345310, 70007243563797540, 757887406446280110, 70025936403159126390, 7001749954335151685670, 700007496840185797172910

Offset: 1

Author

Amarnath Murthy, Nov 04 2002

Keywords

• base
• nonn

Examples

			a(3) = 70 = 2*5*7.
		

Crossrefs

Cf. A077326, A077327, A077328, A077329, A077330, A077331, A077333, A077334.

Cf. A106411-A106419, A106421-A106429.

Extensions

a(5)-a(10) from Ray Chandler, Apr 17 2005

More terms from Ray Chandler, May 02 2005