51032

Appears in sequences

• Numerators of hypergeometric Cauchy numbers c_(2,n).at n=7A224090
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 805", based on the 5-celled von Neumann neighborhood.at n=7A273603
• a(n) is the position of A138534(n) in A025487.at n=11A346043
• a(n) = 2^n * [x^n] Product_{k>=1} (1 + 2*x^k)^(1/2).at n=11A370709