140571

Appears in sequences

• Number of permutations of 1..n arranged in a circle with exactly 4 adjacent element pairs in decreasing order.at n=5A151577
• Number of permutations of 1..n arranged in a circle with exactly 5 adjacent element pairs in decreasing order.at n=4A151578
• Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k - 1 and n*2^k + 1 do not form a twin prime pair.at n=20A237592
• 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=49A334218
• 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=50A334218