507375

Appears in sequences

• Number of lower triangles of an n X n integer array with each element differing from all of its vertical and horizontal neighbors by 7 or less and triangles differing by a constant counted only once.at n=2A195277
• Number of lower triangles of a 3 X 3 integer array with each element differing from all of its vertical and horizontal neighbors by n or less and triangles differing by a constant counted only once.at n=6A195279
• Array read by antidiagonals: T(m,n) read in binary is a palindrome with m runs of n ones separated by single zeros.at n=24A249544
• a(n) = n^3*(2*n^2+1)/3.at n=15A272125
• a(n) is the least number k such that A246600(k) = n, and -1 if no such k exists.at n=30A359081