66794

Appears in sequences

• Triangular matrix T, read by rows, that satisfies: T^3 + 3T^2 + 3T = SHIFTUP(T), also T^(n+2) + 3T^(n+1) + 3T^n = SHIFTUP(T^n - D*T^(n-1)) for all n, where D is a diagonal matrix with diagonal(D) = diagonal(T) = {1,2,3,...}.at n=11A103237
• a(n) = floor(n^(3/2))*floor(3+n^(3/2))/2.at n=50A185593
• Number of cells in regular n-gon after 2 generations of mitosis.at n=23A349807