57064

Appears in sequences

• Structured octagonal anti-diamond numbers (vertex structure 7).at n=23A100187
• Number of permutations of {1,2,...,n} containing exactly 5 occurrences of the pattern 132.at n=5A138163
• Number of singly defective permutations of 1..n+4 with exactly 3 maxima.at n=2A183266
• T(n,k) is the number of singly defective permutations of 1..n+2*k-2 with exactly k maxima.at n=12A183270