347760

Appears in sequences

• a(n) = p(n)/p(n-1), where p(n) = ( floor(n*log(n)) / Product_{j=2..pi(floor(n*log(n)))} prime(j) )!.at n=21A088301
• Number of partitions of {1...n} containing 3 detached pairs of consecutive integers, i.e., partitions in which only 1- or 2-strings of consecutive integers can appear in a block and there are exactly three 2-strings.at n=6A105489
• Triangle read by rows, the Bell transform of Product_{k=0..n} 7*k+1 without column 0.at n=24A132056
• Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y<=3z.at n=27A212513
• Triangle read by rows: T(n,k) = number of homeomorphically irreducible connected labeled graphs with n edges and k vertices, n >= 0, 1 <= k <= n+1.at n=53A331437
• a(n) = Sum_{p|n, p prime} (-1)^(n/p+1) * (n-1)!/(p-1)!.at n=9A352014