**a(n)=floor(2^sqrt(n))-floor(n^sqrt(2))**

*1, 1, 0, 1, 3, 5, 7, 9, 11, 14, 17, 20, 22, 25, 28, 32, 34, 37, 41, 44*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

Links to OEIS content are included according to The OEIS End-User License Agreement .