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Search: id:A114970
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A114970 2^n+n^2 is semiprime. +0
1
5, 7, 17, 25, 43, 61, 69, 73, 105, 111, 117, 123, 135, 141, 171 (list; graph; listen)
OFFSET

1,1

EXAMPLE

2^5 + 5^2 = 32 + 25 = 57 = 3*19 (semiprime).

CROSSREFS

Adjacent sequences: A114967 A114968 A114969 this_sequence A114971 A114972 A114973

Sequence in context: A128352 A025085 A032412 this_sequence A048710 A126142 A019340

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Feb 22 2006

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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