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Search: id:A091020
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A091020 Numbers n such that in binary representation n is a substring of n-th prime. +0
2
1, 5, 6, 15, 31, 32, 34, 39, 49, 50, 81, 82, 1052, 1799, 2119, 2573, 3378, 3447, 52225, 61870, 95752 (list; graph; listen)
OFFSET

1,2

COMMENT

a(n) = A049084(A091021(n)), A000040(a(n)) = A091021(n);

A007088(a(n)) is a substring of A004676(a(n)).

EXAMPLE

A000040(50)=229: 50->110010, 229->11100101=1'110010'1, therefore 50 is a term.

CROSSREFS

Sequence in context: A121847 A030533 A115908 this_sequence A019070 A019071 A028285

Adjacent sequences: A091017 A091018 A091019 this_sequence A091021 A091022 A091023

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Dec 14 2003

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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