-3100domain: ZAppears in sequencesa(n) = 2n(19-n).at n=50A182428The expansion of R(q)^-5 in powers of q where R() is the Rogers-Ramanujan continued fraction.at n=20A229793a(n) = Sum_{d|n} mu(n/d) * d * (n/d)^(d-1), where mu() is the Moebius function (A008683).at n=24A359188