60376809
domain: N
Appears in sequences
- E.g.f.: (1+sqrt(2)*sin(x/sqrt(2))*cosh(x/sqrt(2))+sin(x/sqrt(2))*sinh(x/sqrt(2)))/(cos(x/sqrt(2))*cosh(x/sqrt(2))).at n=16A178964
- Generalized Euler numbers. Square array A(n,k), n >= 1, k >= 0, read by antidiagonals. A(n,k) = n-alternating permutations of length n*k.at n=32A181985
- n-alternating permutations of length 4n.at n=3A181991
- n-alternating permutations of length n^2.at n=4A181992
- 4-alternating permutations of length 4n.at n=4A211212
- Square array read by ascending antidiagonals: number of m-shape Euler numbers.at n=40A260877
- Triangle read by rows, coefficients of generalized Eulerian polynomials F_{4;n}(x).at n=10A292606