26116domain: NAppears in sequencesa(n) = Sum_{k=0..2*n} (k+1)*T(n,k), T given by A027960.at n=9A027981Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 100 ones.at n=22A031868Number of partitions satisfying cn(0,5) < cn(2,5) + cn(3,5).at n=38A039841Partial sums of A299285.at n=21A299286