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A062531 Index of smallest prime p such that there is a gap of 2^n between p and next prime. 0
2, 4, 24, 282, 738, 8688, 273413, 92276646, 73268943890, 622074604151528 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

T. R. Nicely, List of prime gaps

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

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Last modified August 10 08:28 EDT 2020. Contains 336368 sequences. (Running on oeis4.)