13056000domain: NAppears in sequencesAverage theta series of odd unimodular lattices of dimension 10 (multiplied by 5).at n=21A029812A triangle of coefficients of a product polynomial sequence based on Chebyshev T:differentiation of T[(x,n) which gives U(x,n): p(x,n) = Product_{m=0..n} Sum_{i=0..m} (d/dx) T(x,i+1).at n=34A139809