0,2

a(n)=sum{k=0..n, Bin(n+k, floor((n-k)/2))}

Sequence in context: A078039 A036622 A001384 this_sequence A127681 A112569 A101463

Adjacent sequences: A089938 A089939 A089940 this_sequence A089942 A089943 A089944

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Nov 16 2003