28558

Appears in sequences

• a(1)=1, a(n) = n*19^(n-1) + a(n-1).at n=3A014936
• a(n) = 1 + 2*n + 3*n^2 + 4*n^3.at n=19A056578
• Number of nondecreasing arrangements of n numbers in -5..5 with sum zero and sum of squares not greater than n*30/3.at n=13A183923
• Number of 6 X n 0..1 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.at n=7A223953
• G.f. = g(f(x)), where f(x) = g.f. of Fibonacci sequence A000045 and g(x) = g.f. of Jacobsthal sequence A001045.at n=10A322573
• Expansion of g.f. (1 - x*C(x)) * (1 - x*C(x^2)) / (1 - 4*x), where C(x) = 1 + x*C(x)^2 is the Catalan function (A000108).at n=8A370539