103376domain: NAppears in sequencesExpansion of 1/((1-4x)(1-10x)(1-12x)).at n=4A019747Structured small rhombicubeoctahedral numbers.at n=25A100149Larger of amicable pair m < n defined by t(n) = m and t(m) = n where t(n) = psi(n) - n and psi(n) = A001615(n) is the Dedekind psi function.at n=33A323330