|
Search: id:A077328
|
|
|
| A077328 |
|
Smallest number beginning with 3 and having exactly n distinct prime divisors. |
|
+0
9
|
|
| 3, 33, 30, 330, 3570, 30030, 3008460, 30120090, 300690390, 30043474230, 304075581810, 30035662366710, 304250263527210, 30078810535603830, 3001252188252588270, 32589158477190044730, 3003056284355533696290
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
a(1) = 3, a(6) = 30030 = 2*3*5*7*11*13.
|
|
CROSSREFS
|
Cf. A077326, A077327, A077329, A077330, A077331, A077332, A077333, A077334.
Cf. A106411-A106419, A106421-A106429.
Sequence in context: A134474 A096469 A106423 this_sequence A106413 A101968 A103862
Adjacent sequences: A077325 A077326 A077327 this_sequence A077329 A077330 A077331
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2002
|
|
EXTENSIONS
|
Correct a(3)=30 and add a(5)-a(10) from Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 17 2005
More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), May 02 2005
|
|
|
Search completed in 0.004 seconds
|
