40405

Appears in sequences

• Triangle read by rows: T(n,k) gives number of r-bicoverings of an n-set with k blocks, n >= 2, k = 3..n+floor(n/2).at n=24A060052
• Smallest sequence which lists the position of digits "3" in the sequence.at n=31A167453
• Beach-Williams Pell numbers of type k^2 + 4.at n=11A212083
• Volume of right regular hexagonal pyramid with height and side lengths n, rounded down.at n=35A234729
• Composites whose prime factorization in base 8 is an anagram of the number in base 8.at n=14A260052