A086861 Floor( p/log(p) ), where p = prime(n).

2, 2, 3, 3, 4, 5, 6, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 17, 18, 18, 19, 21, 21, 22, 22, 23, 23, 26, 26, 27, 28, 29, 30, 31, 31, 32, 33, 34, 34, 36, 36, 37, 37, 39, 41, 41, 42, 42, 43, 43, 45, 46, 47, 48, 48, 49, 49, 50, 51, 53, 54, 54, 55, 57, 57, 59, 59, 60, 61, 62

Offset: 1

Author

Yang Sok Kim (yangsokk(AT)utas.edu.au), Aug 20 2003

Keywords

• nonn
• easy

Programs

Mathematica

Table[Floor[p/Log[p]],{p,Prime[Range[80]]}] (* Harvey P. Dale, Aug 22 2017 *)

PARI

a(n) = floor(prime(n)/log(prime(n))) \\ Michel Marcus, Aug 07 2013

Extensions

More terms from Ray Chandler, Aug 31 2003