4537314domain: NAppears in sequencesEulerian numbers (Euler's triangle: column k=3 of A008292, column k=2 of A173018).at n=11A000460Triangular array formed from even elements to right of middle of rows of the triangle of Eulerian numbers.at n=20A014472Distinct elements occurring in triangle of Eulerian numbers (sorted).at n=37A030196