523456
domain: N
Appears in sequences
- Number of elements in the coprime subsets of the integers 1 to n.at n=34A087080
- Coefficient array of orthogonal polynomials P(n,x)=(x-2n)*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x-2.at n=29A178120
- a(n) = 8*((9*n + 8)*10^n - 8)/81.at n=5A294329
- Number of partitions of 1 into exactly 10*n+1 powers of 1/11.at n=21A295081