92732domain: NAppears in sequencesa(n) = a(n-1) + a(n-2) + 4, with a(0)=0, a(1)=2.at n=21A168193Row sums of triangle in A204026.at n=41A238374Number of distinct linear polynomials b+c*x in row n of array generated as in Comments.at n=21A242448