53524domain: NAppears in sequencesExpansion of 1/(1-x^2-x^3-x^4-x^5).at n=28A013982C(n-3,3)+C(n-7,7)+...+C(n-(4*floor((n-4)/4)+3),4*floor((n-4)/4)+3).at n=26A101552Number of compositions (ordered partitions) of n into prime power parts (not including 1) not greater than sqrt(n).at n=28A369221