242760

Appears in sequences

• 4-dimensional figurate numbers: a(n) = n*binomial(n+2, 3).at n=33A002417
• Bisection of A002417.at n=16A100431
• G.f.: x*(1 - x + x^2)/((1-x)^2 * (1 - x - x^2)).at n=24A104161
• Numbers which are the area of exactly three Pythagorean triangles.at n=23A177021
• Number of n X 2 0..1 arrays with exactly n+2-2 having value 1 and no three 1s forming an isosceles right triangle.at n=22A272952