OFFSET
1,2
EXAMPLE
A099520 begins: 1,2,4,5,3,7,11,10,6,12,8,14,22,... so records are: 1,2,4,5,7,11,12,14,22, which appear in positions: 1,2,3,4,6,7,10,12,13,...
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 20 2004
STATUS
approved