67472

Appears in sequences

• Numbers of unstrained alkane staggered conformers (acyclic) of the unbranched type for point group C1. See Table 4 of the Cyvin et al. reference for precise definition.at n=12A126877
• Number of n X n matrices with entries 0 and 1 and no 2 X 2 submatrix of form [ 1 1; 0 0 ].at n=5A213977
• Number of nonnegative solutions to (x_1)^2 + (x_2)^2 + ... + (x_8)^2 <= n.at n=31A341403
• Numbers k such that k and k+1 both have the same number of squarefree divisors and powerful divisors.at n=21A360904
• Number of discrete uninorms defined on the finite chain L_n={0,1,...,n-1,n}.at n=7A367442
• Square array T(n, k) read by rising antidiagonals. Row n has the ordinary generating function (-(n*x^3-(n+1)*x^2+x) + sqrt((n*x^3-(n+1)*x^2+x)^2 - 4*(x^3-x^2)*((n+1)*x^2-x)))/(2*(x^3-x^2)).at n=75A377441