0,1
(cos Pi/4)^4=0.25, so a(4)=2. (cos Pi/4)^8=0.0625, so a(8)=6
Sequence in context: A087273 A106040 A085927 this_sequence A093824 A019935 A144846
Adjacent sequences: A155813 A155814 A155815 this_sequence A155817 A155818 A155819
nonn
Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 28 2009
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