1,2
a(n)=Ceiling[Floor[(7n + 2)/2]/2]
Sequence in context: A080037 A114571 A050091 this_sequence A143346 A138969 A161819
Adjacent sequences: A047291 A047292 A047293 this_sequence A047295 A047296 A047297
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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