0,1

a(n)=PrimePi[A002982(n)!-1]=A000720[A055490(n)]

exact subscript of 7th prime [=30!-1=265252859812191058636308479999999] not yet available

A002981, A002982, A055490.

Adjacent sequences: A062699 A062700 A062701 this_sequence A062703 A062704 A062705

Sequence in context: A127100 A018778 A082606 this_sequence A141143 A082707 A087193

hard,nonn

Labos E. (labos(AT)ana.sote.hu), Jul 11 2001