177289

Appears in sequences

• Principal diagonal of the convolution array A213822.at n=30A213823
• Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.at n=7A233372
• All integers k that can produce a closed walk in an equilateral triangular lattice via noncongruent primitive k-length diagonals, in ascending order.at n=8A387031