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A155056 Primes n such that number of prime digits of prime(n) > number of nonprime digits of prime(n). 0
2, 3, 31, 37, 59, 61, 67, 71, 73, 101, 103, 107, 131, 137, 139, 151, 241, 269, 307, 331, 349, 367, 457, 461, 491, 499, 503, 509, 521, 587, 727, 733, 739, 823, 827, 907, 929, 937, 953, 983, 1033, 1049, 1063 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Prime digit = 2, 3, 5 or 7. Nonprime digit = 0, 1, 4, 6, 8 or 9.

LINKS

Table of n, a(n) for n=1..43.

EXAMPLE

If n=31=prime and 127=prime(31), then 1(1)<2(2 and 7) and 31=a(3). if n=37=prime and 157=prime(37), then 1(1)<2(5 and 7) and 37=a(4). If n=59=prime and 277=prime(59), then 0<3(2, 7 and 7) and 59=a(5), etc.

CROSSREFS

Cf. A000040, A141468.

Sequence in context: A074479 A272043 A136150 * A110456 A128348 A029973

Adjacent sequences:  A155053 A155054 A155055 * A155057 A155058 A155059

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov, Jan 19 2009

EXTENSIONS

Corrected (269 inserted) by R. J. Mathar, May 05 2010

STATUS

approved

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Last modified February 20 13:59 EST 2020. Contains 332078 sequences. (Running on oeis4.)