1171456

Appears in sequences

• Number of permutations of n elements divided by the number of ternary heaps on n+1 elements.at n=28A273731
• Number of 3-cycles in the n-halved cube graph.at n=12A290026
• Numbers k such that the denominator of sigma(sigma(k))/k is equal to 2.at n=5A330598
• Number of subsets of {1..n} that contain exactly three odd numbers.at n=24A331408
• Riordan array ((1-x)^(m-1), x/(1-x)) with factor r^(2*n) on row n, for m = 3/2, r = 2.at n=42A380851