73280

Appears in sequences

• Number of subtraction steps in n-th interval between special points in Recamán's sequence A005132.at n=20A065055
• Expansion of 1/(1-2*x+2*x^2+x^3).at n=23A077944
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 619", based on the 5-celled von Neumann neighborhood.at n=39A273252
• a(n) = Sum_{k=0..n} (-1)^k * binomial(n+4*k+4,n-k) * Catalan(k).at n=14A360060