267852domain: NAppears in sequencesa(n) = Sum_{k=1..prime(n)-1} floor(k^3/prime(n)).at n=26A078837a(n) = 4*a(n-1)-2*a(n-2)-3*a(n-3)+2*a(n-4), n>5.at n=11A107299Sum of largest parts of all partitions of n into an even number of parts.at n=41A222048Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 5.at n=13A241650