90720

Appears in sequences

• Erroneous version of A342587.at n=26A008285
• Triangle of coefficients in expansion of (1+6x)^n.at n=40A013613
• Triangle of coefficients in expansion of (2+3x)^n.at n=40A013620
• Numbers k such that sigma(k) >= 4*k.at n=10A023198
• Number of aperiodic necklaces with n labeled beads of 2 colors.at n=6A032321
• a(n) = floor( n(n+1)(n+2)(n+3)(n+4) / (n+(n+1)+(n+2)+(n+3)+(n+4)) ).at n=24A032768
• Integer quotients of n(n + 1)(n + 2)(n + 3)(n + 4) / (n+(n+1)+(n+2)+(n+3)+(n+4)).at n=19A032770
• Positive integers of the form n(n+1)(n+2)(n+3)(n+4)/(n+(n+1)+(n+2)+(n+3)+(n+4)) that are a multiple of n.at n=14A032794
• Positions of incrementally largest terms in continued fraction for Copeland-Erdős constant.at n=14A033311
• Maximum of different products of partitions of n into distinct parts.at n=40A034893
• Number of possible rook moves on an n X n chessboard.at n=35A035006
• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*2^j.at n=40A038220
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j).at n=40A038255
• Triangle read by rows: T(n,k) = k!*binomial(n-1,k-1)*Stirling2(n,k), 1 <= k <= n.at n=26A048743
• Expansion of e.g.f. (1-x)/(1 - x - x^2 - 2*x^3 + 2*x^4).at n=7A052681
• E.g.f.: x^3*(exp(x)-1)^2.at n=10A052769
• Expansion of e.g.f. x^4*exp(x)^2 - 2*x^4*exp(x) + x^4.at n=9A052793
• E.g.f.: -x^5*log(1-x).at n=9A052794
• E.g.f.: log(-(-1+x)^2/(-1+2*x)).at n=7A052867
• Number of labeled order relations on n nodes in which longest chain has n-1 nodes.at n=5A055533