Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A146295
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A146295 Integers which are not the sum of a 4-almost prime and a prime. +0
4
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 24, 25, 28, 30, 32, 34, 36, 40, 44, 46, 48, 50, 52, 54, 60, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 96, 108, 114, 116, 120, 126, 130, 132, 136, 144, 150, 156, 162, 168, 174, 180, 204, 210, 216, 240, 246, 258 (list; graph; listen)
OFFSET

2,1

COMMENT

Largest term is 60060 (see b-file). No more terms < 10^8. Conjectured to be complete.

LINKS

Donovan Johnson, Table of n, a(n) for n=2..196

EXAMPLE

20 is in this sequence because no 4-almost prime and a prime sum to 20. 21 is not in this sequence because the sum of 16 (4-almost prime) and 5 (prime) is 21.

CROSSREFS

Cf. A000040, A014613, A130588, A146296, A146297.

Sequence in context: A164710 A098452 A088382 this_sequence A123719 A113221 A113219

Adjacent sequences: A146292 A146293 A146294 this_sequence A146296 A146297 A146298

KEYWORD

fini,nonn

AUTHOR

Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 05 2008

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 November 23 10:40 EST 2009. Contains 167421 sequences.


AT&T Labs Research