OFFSET
0,2
COMMENTS
Row n (starting from row 0) contains A072643(n)+1 terms: 1; 2,3; 4,5,6; 6,7,8; 9,10,11,14; 11,12,13,15; ...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Antti Karttunen, Dec 22 2008
STATUS
approved