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A228127 Numbers n such that first n digits of A091724 (Decimal expansion of E^(2*EulerGamma)) gives a prime number. 0
1, 2, 3, 1080 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(5) > 10^4.

LINKS

Table of n, a(n) for n=1..4.

Eric Weisstein's World of Mathematics, ConstantPrimes

Eric Weisstein's World of Mathematics, IntegerSequencePrimes

MATHEMATICA

nn=1100; With[{c=RealDigits[E^(2*EulerGamma), 10, nn][[1]]}, Select[ Range[ nn], PrimeQ[FromDigits[Take[c, #]]]&]] (* Harvey P. Dale, Nov 13 2014 *)

CROSSREFS

Cf. A091724.

Sequence in context: A136611 A004898 A062920 * A036111 A097549 A323518

Adjacent sequences:  A228124 A228125 A228126 * A228128 A228129 A228130

KEYWORD

nonn,more,base

AUTHOR

Robert Price, Aug 26 2013

STATUS

approved

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Last modified May 25 19:13 EDT 2019. Contains 323576 sequences. (Running on oeis4.)