39128

Appears in sequences

• Expansion of a modular function.at n=22A006709
• Expansion of x/(1 - 8*x - 3*x^2).at n=6A015574
• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 2 X n array.at n=24A219628
• At stage 1, start with a unit equilateral triangle. At each successive stage add 3*(n-1) new triangles around outside with vertex-to-vertex contacts. Sequence gives number of triangles at n-th stage.at n=45A269064
• Intersection of A046346 and (A046346-2).at n=6A309310