105840

Appears in sequences

• a(n) = n! * C(n,2).at n=5A001804
• a(n) = n! * binomial(n,5).at n=2A001807
• a(n) = n!*Fibonacci(n+1).at n=7A005442
• Triangle of coefficients in expansion of (6+7x)^n.at n=17A013627
• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VNI = VPI-9 Rb44K4[Zn24Si96O240].48H2O starting with a T1 atom.at n=15A019252
• Triangle of coefficients in expansion of x^n in terms of Laguerre polynomials L_n(x).at n=30A021012
• Numbers k such that sigma(k) >= 4*k.at n=14A023198
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*6^j.at n=18A038272
• A triangle related to A000045 (Fibonacci numbers).at n=28A039948
• Number of functions from a set to itself such that the sizes of the preimages of the individual elements in the range form the n-th partition in Abramowitz and Stegun order.at n=43A049009
• a(n) = 3*n*n!.at n=7A052673
• Expansion of e.g.f. (1-x)/(1-2*x+x^2-x^3).at n=7A052691
• E.g.f. (1-x -sqrt(1-2*x-3*x^2) )/2.at n=7A052735
• Number of bracelets of length n using exactly six different colored beads.at n=8A056346
• Number of primitive (period n) bracelets using exactly six different colored beads.at n=8A056352
• Number of labeled n-node 4-valent graphs containing a triple edge and a double edge.at n=8A058835
• a(n) = number of lattice paths from (0,0,0) to (n,n,n) along the cracks on the surface of a Rubik-ized n X n X n cube so that no step increases distance from goal.at n=6A060774
• Fourth (unsigned) column sequence of triangle A062139 (generalized a=2 Laguerre).at n=4A062193
• Numbers k such that sigma(k) > 4*k.at n=12A068404
• Denominator of Sum_{k=1..n} phi(k)/k^2.at n=9A072157