60900
domain: N
Appears in sequences
- Matrix 5th power of Stirling2 triangle A008277.at n=24A039813
- Values of B (the even leg) of a Pythagorean triangle with A and C both prime and part of a twin prime.at n=6A051858
- Triangle read by rows: T(n,k) = number of labeled semigroups of order n with k idempotents.at n=12A058166
- Number of atoms in first n shells of type I hyperfullerene.at n=14A063497
- Even legs of Pythagorean triangles whose other leg and hypotenuse are both prime.at n=15A067755
- Ratio of quadruple Sum of k^2-1 to quadruple sum of k made into an integer sequence: (1/6)*(-1 + n)*(2 + n)*(3 + n)*(7 + n).at n=21A130863
- Sums of the products of n consecutive pairs of numbers.at n=35A135036
- Pythagorean triangle side lengths triples with two lengths prime.at n=45A140391
- Sum of all parts of all partitions of n minus the number of partitions of n.at n=25A182724
- Expansion of Product_{k>=1} (1 + x^k)^A000593(k).at n=25A301800
- Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=11A303199
- Number of vertices in regular n-gon after 2 generations of mitosis.at n=22A349967
- The number of stones-and-bones tilings of the (n,2n-4)-benzel.at n=5A364416