A125075 Consider the smallest k such that prime(k) > n*composite(k). Sequence gives composite(k).

10, 26, 57, 130, 304, 720, 1653, 3933, 9489, 22954, 55860, 136705, 337951, 843306, 2110436, 5311239, 13432130, 34143472, 87069907, 222858046, 572210219, 1473600000, 3804733479

Offset

1,1

Comments

a(n) = A002808(A073459(n)).

Links

Table of n, a(n) for n=1..23.

Example

The smallest k such that prime(k) > 2*composite(k), i.e. A073459(2), is 16; the sixteenth composite, i.e. A002808(16), is 26. Hence a(2) = 26.

Crossrefs

Cf. A000040, A002808, A073459, A093864.

Sequence in context: A242489 A074789 A229308 * A209983 A055710 A332596

Adjacent sequences: A125072 A125073 A125074 * A125076 A125077 A125078

Keyword

nonn

Author

Klaus Brockhaus, Nov 19 2006

Status

approved