36425

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=32A006522
• 10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8*n - 5)/6.at n=30A007585
• a(n) = A026998(2*n, n+4).at n=4A027003
• a(n) = T(n, 2*n-8), T given by A027960.at n=12A027970
• a(n) = n*(7*n^2-4)/3.at n=25A063521
• Smallest number k such that k^n is equal to the sum of n consecutive primes, or 1 if it does not exist.at n=46A123112
• Odd decagonal pyramidal numbers.at n=15A218330
• Number of nX3 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly two elements.at n=5A282476
• Number of nX6 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly two elements.at n=2A282479
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly two elements.at n=30A282481
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly two elements.at n=33A282481
• Number of regions in a polygon whose boundary consists of n+2 equally spaced points around the arc of a semicircle. See Comments for precise definition.at n=29A333643