245640
domain: N
Appears in sequences
- Number of minimal covers of an (n + 1)-set by a collection of n nonempty subsets, a(n) = A035348(n,n-1).at n=13A003469
- The sixth row of the ED1 array A167546.at n=6A167549
- The a(n,n+1) diagonal of the ED1 array A167546.at n=5A167550
- For successive terms of A002202, totient values t, lcm({x: phi(x)=t})/gcd({x: phi(x)=t}).at n=34A317013
- T(n, k) = [x^k] (1/2 - x)^(-n) - (1 - x)^(-n).at n=39A356117
- Numbers k such that A380845(k) = 3*k.at n=15A380847