A062531 Index of smallest prime p such that there is a gap of 2^n between p and next prime.

2, 4, 24, 282, 738, 8688, 273413, 92276646, 73268943890, 622074604151528

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Thomas R. Nicely, First occurrence prime gaps [For local copy see A000101]

Formula

a(n) =A000720[A000230[2^(n-1)]] = Pi[Min{p|p-prevprime(p)=2^n}]

Crossrefs

Cf. A000230, A000720, A062529.

Sequence in context: A151817 A265937 A038058 * A141599 A047677 A030276

Adjacent sequences: A062528 A062529 A062530 * A062532 A062533 A062534

Keyword

hard,nonn

Author

Labos Elemer, Jun 25 2001

Extensions

a(9)-a(10) from Daniel Suteu, Nov 18 2018 [based on data from A062529]

Status

approved