45926

Appears in sequences

• a(n) = Sum_{k=0..2n} (k+1) * A027082(n, 2n-k).at n=9A027107
• Number of inequivalent binary [ n,3 ] codes of dimension <= 3 without zero columns.at n=37A034337
• Numbers having four 8's in base 9.at n=6A043488
• Numbers whose base-3 representation contains exactly one 0 and no 1's.at n=37A044970
• Numbers of the form i*9^j-1 (i=1..8, j >= 0).at n=38A140576
• a(n) = 7*9^n - 1.at n=4A198965
• Expansion of g.f.: (1 + x - 2*x^2 + 2*x^4)/((1-x)*(1-3*x^2)).at n=19A358027