The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A100895

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A100895

a(n) = smallest n-digit prime formed by appending a digit to a(n-1); a(1) = 7.
(history; published version)

#8 by N. J. A. Sloane at Mon Jan 21 19:01:55 EST 2019

AUTHOR

_Jorge Coveiro (jorgecoveiro(AT)yahoo.com), _, Jan 10 2005

Discussion

Mon Jan 21

19:01

OEIS Server: https://oeis.org/edit/global/2800

#7 by Russ Cox at Fri Mar 30 17:28:19 EDT 2012

EXTENSIONS

Edited by _Charles R Greathouse IV (charles.greathouse(AT)case.edu), _, Aug 02 2010

Discussion

Fri Mar 30

17:28

OEIS Server: https://oeis.org/edit/global/147

#6 by R. J. Mathar at Sat Oct 15 12:22:45 EDT 2011

STATUS

proposed

approved

#5 by R. J. Mathar at Sat Oct 15 12:12:21 EDT 2011

STATUS

editing

proposed

#4 by R. J. Mathar at Sat Oct 15 11:47:51 EDT 2011

COMMENTS

These are the first 6 entries of A048552. - R. J. Mathar, Oct 15 2011

STATUS

approved

editing

#3 by N. J. A. Sloane at Fri Aug 27 03:00:00 EDT 2010

OFFSET

0,1,1

KEYWORD

fini,nonn,base,fini,full,new

EXTENSIONS

Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Aug 02 2010

#2 by N. J. A. Sloane at Tue Jan 24 03:00:00 EST 2006

KEYWORD

fini,nonn,full,new

AUTHOR

Jorge Coveiro (rubyxjjorgecoveiro(AT)hotmailyahoo.com), Jan 10 2005

#1 by N. J. A. Sloane at Sun Feb 20 03:00:00 EST 2005

NAME

a(n) = smallest n-digit prime formed by appending a digit to a(n-1); a(1) = 7.

DATA

7, 71, 719, 7193, 71933, 719333

OFFSET

0,1

COMMENTS

There is no prime a(7) since 7193331,7193333,7193337,7193339 are not prime.

EXAMPLE

a(1)=7

a(2)=71

a(3)=719

a(4)=7193

a(5)=71933

a(6)=719333

KEYWORD

fini,nonn,full

AUTHOR

Jorge Coveiro (rubyxj(AT)hotmail.com), Jan 10 2005

STATUS

approved