352632domain: NAppears in sequencesLesser of semi-unitary amicable numbers pair: numbers (m, n) such that susigma(m) = susigma(n) = m + n, where susigma(n) is the sum of the semi-unitary divisors of n (A322485).at n=30A322541Lesser of modified exponential amicable pairs.at n=25A323758Expansion of 1/((1 + x)^7 - 2*x^7).at n=15A375163