1,1

a(1)=12 is a term because 12th semiprime (i.e. 34)== 10 (mod 12).

Cf. A001358.

Adjacent sequences: A106132 A106133 A106134 this_sequence A106136 A106137 A106138

Sequence in context: A019292 A022326 A127401 this_sequence A058073 A058951 A002926

hard,more,nonn

Shyam Sunder Gupta (guptass(AT)rediffmail.com), May 07 2005