1,1
The sequence is obtained by an application of an Eratosthenes-like sieve to A160217.
Cf. A160215 A160216 A160217 A000040
Sequence in context: A167181 A049835 A117510 this_sequence A134442 A094179 A085760
Adjacent sequences: A160224 A160225 A160226 this_sequence A160228 A160229 A160230
nonn
Vladimir Shevelev (shevelev(AT)bgu.ac.il), May 04 2009, May 06 2009
Edited by N. J. A. Sloane, May 08 2009
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