245481

Appears in sequences

• Triangle, read by rows, that transforms diagonals in the array A274390 of coefficients in successive iterations of Euler's tree function (A000169).at n=15A274570
• Column 0 of triangle A274570.at n=5A274571
• Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 7 with exactly one descent.at n=25A362194