A077522 Smallest number beginning with n and having exactly n prime divisors, all distinct.

11, 21, 30, 462, 5610, 62790, 746130, 80150070, 900029130, 10407767370, 1100869379610, 12026713528830, 1300912477633230, 14299762385778870, 1502172599891453490, 160000041334479776430, 17000158733027932351890

Offset

1,1

Links

Sean A. Irvine, Table of n, a(n) for n = 1..29

Example

21 = 3*7, 30 = 2*3*5, 462 = 2*3*7*11.

Crossrefs

Cf. A011753.

Sequence in context: A101223 A396129 A109686 * A308232 A049201 A068633

Adjacent sequences: A077519 A077520 A077521 * A077523 A077524 A077525

Keyword

base,nonn

Author

Amarnath Murthy, Nov 08 2002

Extensions

More terms from Ray Chandler, Aug 23 2003

Status

approved