A241542 Indices (i.e., value of A000720 = primepi) of primes in A111870.

1, 2, 4, 30, 189, 217, 2225, 3385, 14357, 30802, 31545, 104071, 149689, 1094421, 1319945, 10655462, 23163298, 112228683, 182837804, 203615628, 486570087, 1094330259, 11992433550, 17883926781, 50070452577, 52302956123, 72178455400, 94906079600, 473258870471, 662221289043

Offset

1,2

Links

Amiram Eldar, Table of n, a(n) for n = 1..32 (calculated using Kim Walisch's primecount)

Kim Walisch, Fast C++ prime counting function implementation (primecount).

Formula

a(n) = A000720(A111870(n)).

Crossrefs

Cf. A000720, A111870.

Sequence in context: A359914 A230777 A344582 * A241540 A349265 A208097

Adjacent sequences: A241539 A241540 A241541 * A241543 A241544 A241545

Keyword

nonn,changed

Author

M. F. Hasler, Apr 25 2014

Extensions

a(20)-a(30) from Amiram Eldar, Sep 03 2024

Status

approved