203616
domain: N
Appears in sequences
- Partial sums of A001158: Sum_{j=1..n} sigma_3(j).at n=28A064603
- Number of permutations p() of 1..n+3 with centered difference p(i+1)-p(i-1) < 0 exactly twice.at n=6A180880
- Number of permutations p() of 1..n+7 with centered difference p(i+1)-p(i-1) < 0 exactly 6 times.at n=2A180884
- Array read by antidiagonals: T(n,k)=number of permutations p() of 1..n+k with centered difference p(i+1)-p(i-1) < 0 exactly k-1 times.at n=38A180887
- Array read by antidiagonals: T(n,k)=number of permutations p() of 1..n+k with centered difference p(i+1)-p(i-1) < 0 exactly k-1 times.at n=42A180887