A053302 Largest n-digit prime at the start of a record in the RECORDS transform of the prime gaps.

7, 89, 887, 9551, 31397, 492113, 4652353, 47326693, 436273009, 4302407359, 42652618343, 738832927927, 7177162611713, 90874329411493, 218209405436543, 1693182318746371

Offset: 1

Author

Enoch Haga, Mar 05 2000

Keywords

• nonn
• base

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

Examples

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

Links

• 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

Crossrefs

The length of the gap is in A053303.

Formula

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

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