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A053302 Largest n-digit prime at the start of a record in the RECORDS transform of the prime gaps. 2
7, 89, 887, 9551, 31397, 492113, 4652353, 47326693, 436273009, 4302407359, 42652618343, 738832927927, 7177162611713, 90874329411493, 218209405436543, 1693182318746371 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(17) is probably 80873624627234849 and a(19) is probably 8822016561303449927. - Robert G. Wilson v, Mar 16 2004

a(18) is most probably 804212830686677669. - M. F. Hasler, Apr 25 2014

Is this a duplicate of A073861 (except for the first term)? - M. F. Hasler, Apr 25 2014

LINKS

Table of n, a(n) for n=1..16.

Thomas R. Nicely, Some Results of Computational Research in Prime Numbers [Local copy, pdf only] [ See local copy in A007053]

Eric Weisstein's World of Mathematics, Prime Gaps

FORMULA

a(n) = { max p: p in A002386; p< 10^n}. - R. J. Mathar, Feb 01 2008

EXAMPLE

a(5)=31397, the last 5-digit prime to begin a gap.

CROSSREFS

The length of the gap is in A053303.

Sequence in context: A089394 A068692 A178006 * A068877 A121044 A107109

Adjacent sequences:  A053299 A053300 A053301 * A053303 A053304 A053305

KEYWORD

nonn,base

AUTHOR

Enoch Haga, Mar 05 2000

EXTENSIONS

Corrected by Jud McCranie, Jan 03 2001

a(15) and a(16) from Robert G. Wilson v, Mar 16 2004

Edited by R. J. Mathar, Feb 01 2008

STATUS

approved

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Last modified September 26 05:53 EDT 2022. Contains 356986 sequences. (Running on oeis4.)