1,2

A033497 := proc(n) option remember; if n <= 3 then 2^(n-1) else A033497(n-1)+A033497(round(2*(n-1)/2))+A033497(round((n-1)/2)); fi; end;

Sequence in context: A005306 A091618 A018108 this_sequence A075560 A078040 A121285

Adjacent sequences: A033494 A033495 A033496 this_sequence A033498 A033499 A033500

nonn

njas