47957
domain: N
Appears in sequences
- a(n) = (6*n+1)*(6*n+5).at n=36A001513
- Number of finite positive integer sequences b(1),...,b(k), with k <= n and b(1)*b(2)*...*b(k) <= n.at n=16A064453
- a(n) = A077706(n+1)/A077706(n).at n=14A077707
- Odd squarefree numbers n such that the cyclotomic polynomial Phi(n,x) is not coefficient convex.at n=29A146960
- a(n) = A061037(7*n+2).at n=31A165943
- Number of pairs of intersecting diagonals in the exterior of a regular n-gon.at n=28A211381
- Number of intersections of diagonals in the exterior of a regular n-gon.at n=28A211382
- Number of unrooted loops of length 2n on the square lattice that have winding number +1 around a fixed off-lattice point.at n=4A292341
- Number of squarefree parts in the partitions of n into 10 parts.at n=43A309464
- Numerators of the sequence whose Dirichlet convolution with itself yields A057660(n) = Sum_{k=1..n} n/gcd(n,k).at n=47A318444
- Terms of A349937 that are not divisible by 3: numbers k > 1 not divisible by 2 or 3 such that A309906(k-1) < A309906(k) > A309906(k+1).at n=37A349941
- a(n) = A351477(n) * FC where F is the Fermat point of a primitive integer-sided triangle ABC with A < B < C < 2*Pi/3 and FA + FB + FC = A336329(n).at n=15A351803