1128834

Appears in sequences

• a(n) = 2nd elementary symmetric function of the first n+1 positive integers congruent to 1 mod 4.at n=26A024378
• Coefficients of the power series expansion at p=1 of the time constant C(-1,p) for last passage percolation on the complete directed acyclic graph, where the edges' weights are equal to 1 or -1 with respective probabilities p and 1-p.at n=21A373089