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Search: id:A108323
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| A108323 |
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"Binary prime squares": perfect squares written in base 2 which, considered as decimal numbers, are primes. |
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+0
2
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| 1101001001, 10111110001, 101000101001, 101011111001, 1000110001001, 1110000111001, 1110110010001
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Another definition: numbers having only digits 1 and 0, which, read in base 10 are primes and in base 2 are perfect squares. Derived from A108322 from which the 0-terms have been removed.
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CROSSREFS
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Sequence in context: A139571 A134595 A108322 this_sequence A154474 A096553 A104924
Adjacent sequences: A108320 A108321 A108322 this_sequence A108324 A108325 A108326
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KEYWORD
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easy,nonn
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AUTHOR
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Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Jun 30 2005
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