1,1

Table of n, a(n) for n=1..45.

a(4)=22 because A078142(22)=7, the fourth prime and this is the first time 7 occurs.

Sequence in context: A135348 A305101 A083322 * A085264 A005999 A102429

Adjacent sequences: A073936 A073937 A073938 * A073940 A073941 A073942

nonn

Jason Earls, Nov 20 2002

approved