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A108324 "Binary prime squares": perfect squares whose binary representation considered as decimal ones are primes. +0
1
841, 1521, 2601, 2809, 4489, 7225, 7569 (list; graph; listen)
OFFSET

1,1

COMMENT

Similar to A108323 but in base 10.

EXAMPLE

a(2)=1521 because 1521 in base 2 is 10111110001 and the decimal number 10111110001 is prime.

CROSSREFS

Sequence in context: A091038 A121498 A159690 this_sequence A133496 A121499 A049530

Adjacent sequences: A108321 A108322 A108323 this_sequence A108325 A108326 A108327

KEYWORD

easy,nonn

AUTHOR

Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Jun 30 2005

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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