

A111871


Prime gaps qp with nth record merit referred to in A111870.


16



1, 2, 4, 14, 22, 34, 52, 72, 86, 96, 112, 132, 148, 180, 210, 248, 282, 320, 336, 354, 382, 456, 514, 532, 582, 588, 602, 652, 716, 766, 906, 1132, 1328, 1356, 1370, 1442, 1476
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OFFSET

1,2


COMMENTS

The prime gaps qp (corresponding to a(n)=p in A111870) have increasing record merit (qp)/log(p). However, the prime gaps themselves are almost always monotonically increasing (with very high probability), but not always! And we do have an exception in the list above: a(14)=148 < a(13)=154! (But see next comment!)
Because the erroneous A111870(13) = 4652353 term was removed, a(13) = 154 was removed. This sequence is therefore monotonically increasing.  John W. Nicholson, Nov 18 2013


REFERENCES

Ed Pegg, Jr., Posting to Seq Fan mailing list, Nov 23, 2005


LINKS

Table of n, a(n) for n=1..37.
Jens Kruse Andersen, The Top20 Prime Gaps


FORMULA

a(n) = A277552(n)  A111870(n).  Bobby Jacobs, Nov 13 2016


EXAMPLE

A111870(4) = 113 and the next larger prime is 127, so 127  A111870(4) = a(4) = 14.


CROSSREFS

For the primes p corresponding to the prime gaps qp with nth record merit, see A111870.
Cf. A002386, A277552.
Sequence in context: A243934 A071865 A127596 * A291079 A090808 A074716
Adjacent sequences: A111868 A111869 A111870 * A111872 A111873 A111874


KEYWORD

nonn


AUTHOR

N. J. A. Sloane, based on correspondence with Ed Pegg Jr, Nov 23 2005


EXTENSIONS

Corrected and edited by Daniel Forgues, Nov 11 2009 and Nov 20 2009
Because the erroneous A111870(13) = 4652353 term was removed, a(13) = 154 was removed by John W. Nicholson, Nov 18 2013
a(33)a(35) inserted by Bobby Jacobs, Nov 08 2016
a(37) added by Bobby Jacobs, Nov 09 2016


STATUS

approved



