34742

Appears in sequences

• Number of n X 2 nonnegative integer arrays with upper left 0 and every value within 2 of its city block distance from the upper left and every value increasing by 0 or 1 with every step right or down.at n=27A252814
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 569", based on the 5-celled von Neumann neighborhood.at n=31A272993
• Expansion of Product_{k>=1} 1/(1 + x^k)^(k*(3*k-1)/2).at n=16A295086
• Partial sums of the Dedekind psi_2(k) function, for 1 <= k <= n.at n=44A321973