25696

Appears in sequences

• Fibonacci sequence beginning 5, 13.at n=17A022138
• Denominators of continued fraction convergents to cosh(1).at n=11A078982
• Number of binary relations R on {1,2,...,n} such that the transitive closure of R is the trivial relation.at n=4A186081
• 3rd-largest term in n-th row of Stern's diatomic triangle A002487.at n=19A244473
• Growth series for affine Coxeter group (or affine Weyl group) D_4.at n=33A266759
• Number of Sós permutations of {0,1,...,n}.at n=42A330503
• Expansion of Product_{k>=1} (1 + x^k * (k + x)).at n=20A336979
• Triangular array read by rows. T(n,k) is the number of binary relations on [n] containing exactly k strongly connected components, n >= 0, 0 <= k <= n.at n=11A361269