2981888

Appears in sequences

• a(n) = n*(n-1)*2^n.at n=14A128796
• Number of defective 4-colorings of an n X 2 0..3 array connected horizontally, antidiagonally and vertically with exactly one mistake, and colors introduced in row-major 0..3 order.at n=9A229473
• Number of 3-cycles in the n-halved cube graph.at n=13A290026
• a(n) = Sum_{d|n, n/d==1 mod 4} d^6 - Sum_{d|n, n/d==3 mod 4} d^6.at n=11A321830
• Heinz numbers of integer partitions, with at least three parts, whose product of parts is one fewer than their sum.at n=28A325043
• Number of subsets of {1..n} that contain exactly three odd numbers.at n=26A331408