1997701992

Appears in sequences

• Number of permutations p() of 1..n+6 with centered difference p(i+1)-p(i-1) < 0 exactly 5 times.at n=6A180883
• Number of permutations p() of 1..n+7 with centered difference p(i+1)-p(i-1) < 0 exactly 6 times.at n=5A180884