A171420 Numbers n such that composite(n)={2 or 3}*{prime > 3}.

5, 7, 8, 12, 13, 16, 21, 22, 25, 26, 31, 35, 40, 41, 43, 49, 52, 59, 62, 63, 68, 69, 78, 81, 87, 91, 92, 97, 101, 106, 107, 111, 120, 121, 127, 136, 137, 140, 149, 154, 155, 159, 165, 166, 170, 171, 177, 185, 195, 199, 206, 210, 215, 218, 229, 235, 239, 240, 245

Offset

1,1

Links

Table of n, a(n) for n=1..59.

Crossrefs

Cf. A002808, A171156.

Sequence in context: A347127 A061813 A173664 * A047384 A257772 A356897

Adjacent sequences: A171417 A171418 A171419 * A171421 A171422 A171423

Keyword

nonn

Author

Juri-Stepan Gerasimov, Dec 08 2009

Extensions

Two missing terms added by D. S. McNeil, Dec 10 2009

Status

approved