1,2
a(n)=Floor[Ceiling[(7n + 2)/2]/2]
Sequence in context: A083089 A136617 A081223 this_sequence A076521 A139529 A157202
Adjacent sequences: A047290 A047291 A047292 this_sequence A047294 A047295 A047296
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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