OFFSET
1,1
COMMENTS
For n =4, the third term is 10 and not 6 as then there is no number that qualifies for the fourth place. As for every k one of the numbers 2+k, 4+k or 6+k is divisible by 3.
We assume that for each row we want the lexicographically earliest possible set of even numbers. - Joshua Zucker, May 03 2006
LINKS
T. Forbes, Smallest prime k-tuplets gives useful data for extending this sequence.
EXAMPLE
2
2 4
2 4 8
2 4 10 16
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 07 2003
EXTENSIONS
More terms from Joshua Zucker, May 03 2006
STATUS
approved