28395

Appears in sequences

• Let S denote the palindromes in the language {0,1,2}*; a(n) = number of words of length n in the language SS.at n=13A007056
• The arithmetic mean of the n-th and (n+1)-st cubes, rounded down.at n=30A147656
• Number of odd numbers k such that difference between halving and tripling steps in Collatz (3x+1) trajectory of k is n.at n=29A222753
• Triangle T(n, k) = Numbers of ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle of any orientation. Triangle read by rows.at n=47A240439