1561900

Appears in sequences

• Number of permutations of 1..n arranged in a circle with exactly 5 adjacent element pairs in decreasing order.at n=5A151578
• Number of inversion sequences of length n avoiding the consecutive pattern 011.at n=10A328439
• Triangle read by rows: T(n,k) is the number of permutations of 1..n arranged in a circle with exactly k descents.at n=60A334218