88796domain: NAppears in sequencesInternal digits of n^2 include digits of n as subsequence, n does not end in 0.at n=17A046835Expansion of 1/(sqrt(1-4*x)*sqrt(1-8*x)).at n=6A098410Coefficient of x^n in (1+n*x+x^2)^n.at n=6A186925a(n) = Sum_{i+j+k+m=n, i,j,k,m >= 1} tau(i) * tau(j) * tau(k) * tau(m).at n=24A375002