2904003domain: NAppears in sequencesa(n) = 4*n^4 + 3*n^3 + 2*n^2 + n + 1.at n=29A130886Number of colored integer partitions of n using all colors of a 2-set such that all parts have different color patterns and a pattern for part i has i colors in (weakly) increasing order.at n=28A327598