132386domain: NAppears in sequencesa(n)=Sum_{d|n} d*numbpart(d), where numbpart(d)=number of partitions of d, cf. A000041.at n=28A061259Sum of prime anti-divisors of n = sum of prime anti-divisors of n+1 with n > 1.at n=18A192283Expansion of Product_{k>=1} (1 + x^(2*k-1))^(k*(5*k-3)/2)*(1 + x^(2*k))^(k*(5*k+3)/2).at n=15A294840