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Search: id:A154385
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A154385 Primes such that number of prime digits > number of nonprime digits. +0
1
2, 3, 5, 7, 23, 37, 53, 73, 127, 137, 157, 173, 223, 227, 229, 233, 239, 251, 257, 263, 271, 277, 283, 293, 307, 313, 317, 331, 337, 347, 353, 359, 367, 373, 379, 383, 397, 433, 457, 503, 521, 523, 547, 557, 563, 571, 577, 587, 593, 653, 673, 677, 727 (list; graph; listen)
OFFSET

1,1

EXAMPLE

If 73=prime and (7 and 3)=prime digits, then 2>0 and 73=a(8). If 127=prime, (2 and 7)=prime digits and 1=nonprime digit, then 2>1 and 127=a(9).

CROSSREFS

Primes in A000040. Nonprimes in A141468.

Sequence in context: A038925 A154761 A074491 this_sequence A125525 A019546 A104179

Adjacent sequences: A154382 A154383 A154384 this_sequence A154386 A154387 A154388

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 08 2009

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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