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A104843 Primes from merging of 2 successive digits in decimal expansion of e. 39
71, 59, 23, 53, 47, 71, 13, 97, 47, 59, 67, 53, 47, 59, 71, 13, 17, 19, 59, 17, 41, 13, 59, 29, 43, 29, 29, 59, 73, 13, 23, 79, 43, 23, 29, 53, 31, 19, 19, 11, 73, 83, 41, 79, 89, 41, 67, 47, 61, 47, 41, 11, 53, 37, 23, 43, 37, 71, 53, 17, 61, 83, 61, 13, 31, 13, 83, 29, 97 (list; graph; refs; listen; history; text; internal format)
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

Cf. A001113, A073246 (the one-digit primes in e), A104844 - A104862.

Sequence in context: A122967 A087075 A095936 * A127316 A217414 A159025

Adjacent sequences:  A104840 A104841 A104842 * A104844 A104845 A104846

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

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Last modified August 18 14:09 EDT 2017. Contains 290720 sequences.