Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A073495
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A073495 Numbers having exactly three prime gaps in their factorization. +0
5
1870, 2090, 2470, 2530, 2990, 3190, 3410, 3458, 3740, 3770, 3910, 4030, 4070, 4180, 4186, 4510, 4730, 4810, 4930, 4940, 5060, 5170, 5187, 5270, 5278, 5330, 5474, 5510, 5590, 5642, 5830, 5890, 5980, 6110, 6279, 6290, 6380, 6490, 6710, 6734, 6820, 6890 (list; graph; listen)
OFFSET

1,1

COMMENT

A073490(a(n)) = 3.

EXAMPLE

1870 is a term, as 1870 = 2*5*11*17 with three gaps: between 2 and 5, between 5 and 11 and between 11 and 17.

CROSSREFS

Cf. A005117, A073492, A073493, A073494, A073489.

Sequence in context: A023744 A054816 A052168 this_sequence A073489 A054817 A154675

Adjacent sequences: A073492 A073493 A073494 this_sequence A073496 A073497 A073498

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 03 2002

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


AT&T Labs Research