OFFSET
1,1
COMMENTS
Scan decimal expansion of e from left to right, recording any 2-digit primes seen. Overlaps are allowed in all the sequences in this family. - N. J. A. Sloane, Feb 05 2012
Leading zeros are not permitted, so each term is 2 digits in length. [From Harvey P. Dale, Oct 23 2011]
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Eric Weisstein, e
MATHEMATICA
With[{len=2}, FromDigits/@Select[Partition[RealDigits[E, 10, 1000][[1]], len, 1], PrimeQ[FromDigits[#]]&&IntegerLength[FromDigits[#]]==len&]] (* Harvey P. Dale, Oct 23 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Andrew G. West (WestA(AT)wlu.edu), Mar 27 2005
EXTENSIONS
Changed offset from 0 to 1 by Vincenzo Librandi, Apr 21 2013
STATUS
approved