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

Table of n, a(n) for n=1..17.

Example

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

Crossrefs

Cf. A011753.

Sequence in context: A125164 A101223 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