|
| |
|
|
A166678
|
|
Pi[(sqrt[ p_k!! ] +1)^2] -Pi [p_k!! ], where Pi(n) = number of primes <=n; P!! = 2*3*5*7*...*p ; p_k is k-th prime.
|
|
0
| |
|
|
2, 2, 3, 6, 14, 34, 110, 384, 1540, 7019, 34501, 183439, 1045196, 6164423, 38285946
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
