46904

Appears in sequences

• 4-dimensional analog of centered polygonal numbers. Also number of regions created by sides and diagonals of a convex n-gon in general position.at n=34A006522
• Even numbers (not equal to 2) to the left of the central elements of the (2,3)-Pascal triangle A029600.at n=25A029613
• Even numbers to right of central numbers of the (3,2)-Pascal triangle A029618.at n=37A029627
• Numbers k such that the k-th triangular number contains only digits {0,1,6}.at n=15A119042
• Triangle read by rows: T(n,k) (1 <= k <= n) = number of irreducible coverings by edges of the complete bipartite graph K_{n,k}.at n=31A210654