271635

Appears in sequences

• A Lucas Jacobsthal product.at n=11A094633
• Product L(n)*L_4(n), where L(n) are Lucas numbers and L_4(n) are Lucas 4-step numbers.at n=11A106627
• Numbers of pattern-matching permutations of (1342) for the permutations of {1, 2, ..., n} on n = 4, 5, 6, ... elements.at n=5A158006
• The number of edges on a concave circular triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=23A340687