47292

Appears in sequences

• E.g.f.: (exp(x)-1)^2/(2-exp(x)).at n=7A052875
• Triangle read by rows: T(n,k) = Sum_{i=k..n} i!*Stirling2(n,i), n >= 1, 1 <= k <= n.at n=22A084416
• Triangle read by rows: T(n,k)=sum((n+1-i)!*stirling2(n,n+1-i),i=1..k), n>=1, 1<=k<=n.at n=26A084417
• a(n) = 18522*n - 8274.at n=2A157735
• Number of ordered set partitions of [n] with at most six elements per block.at n=7A276926
• Numbers k such that (22*10^k + 161)/3 is prime.at n=25A282278
• Number of aperiodic normal sequences of length n.at n=6A296975
• Number of length n primitive (aperiodic) palindromes with integer entries that cover an initial interval of positive integers.at n=13A327874
• Number of primitive (period n) periodic palindromes with integer entries that cover an initial interval of positive integers.at n=13A327879
• Number of ordered partitions of an n-set without blocks of size 7.at n=7A343790