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A091923 Primes whose decimal representations interpreted in base 11 are not prime. 2
11, 13, 17, 19, 23, 31, 37, 41, 47, 53, 59, 71, 73, 79, 83, 97, 101, 103, 107, 109, 113, 127, 131, 137, 149, 151, 157, 163, 167, 173, 179, 181, 191, 211, 223, 229, 233, 239, 241, 251, 257, 271, 277, 283, 293, 307, 311, 313, 317, 337, 347, 349, 359, 367, 383 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A090862(A049084(a(n))) = 11.

LINKS

Table of n, a(n) for n=1..55.

EXAMPLE

A000040(9)=23 in base 11 is 2*11^1 + 3*11^0 = 25 = 5^2, therefore 29 is a term.

CROSSREFS

Cf. A091924.

Sequence in context: A293660 A046117 A240900 * A050719 A217062 A293662

Adjacent sequences:  A091920 A091921 A091922 * A091924 A091925 A091926

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Feb 13 2004

EXTENSIONS

Corrected by Zak Seidov, Feb 25 2004

STATUS

approved

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Last modified April 19 03:11 EDT 2019. Contains 322237 sequences. (Running on oeis4.)