39081
domain: N
Appears in sequences
- a(n) = T(n,n-3), where T is the array in A026374.at n=40A026382
- a(n) = T(n,n-3), where T is the array in A026386.at n=40A026394
- Number of permutations satisfying -k <= p(i)-i <= r and p(i)-i not in I, i=1..n, with k=1, r=5, I={1}.at n=21A079816
- Greatest integer whose square root is less than or equal to Sum_{j=0..n} sqrt(j).at n=44A338277