OFFSET
1,1
MATHEMATICA
SequencePosition[PrimeOmega[Range[300]], {2, _, _, _, 2}] // Flatten (* Jean-François Alcover, Feb 10 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Jul 24 2010
EXTENSIONS
Edited and terms checked by D. S. McNeil, Nov 26 2010
STATUS
approved