1,1

a(4)=13 since 13 is the fourth prime in A068947.

Cf. A068809, A068947.

Sequence in context: A129941 A159079 A068947 this_sequence A155479 A019411 A105792

Adjacent sequences: A068945 A068946 A068947 this_sequence A068949 A068950 A068951

more,nonn

Francois Jooste (phukraut(AT)hotmail.com), Mar 15 2002