646272

Appears in sequences

• a(n) = T(2n-1,n), where T is the array in A026148.at n=8A026156
• Number of undirected Knight's tours on a 3 X n board.at n=13A169696
• n-th derivative of ((x^x)^x)^x at x=1.at n=8A215704
• Eighth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.at n=4A215838
• Number of 2 X 2 matrices with entries in {0,1,...,n} and odd trace with no elements repeated.at n=34A279905
• Coefficients in q-expansion of E_2^2, where E_2 is the Eisenstein series shown in A006352.at n=14A281374
• Number of normal patterns matched by integer partitions of n.at n=33A335837
• Number of (undirected) Hamiltonian paths on the first n cells of the 3 X ceiling(n/3) knight graph.at n=41A389759