58837

Appears in sequences

• Dirichlet convolution of b_n=1 with Catalan numbers.at n=11A034731
• Number of ways to write n as an ordered sum of 1s, 2s, 3s and 4s such that no 2 precedes any 1 and no 3 precedes any 1 or 2.at n=29A123569
• Floor-Sqrt transform of numbers of A004148 (secondary structures).at n=28A192684
• Minimum value of (1/2)*Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} Sum_{l=1..n} gcd(b(i,j),b(k,l)) * ((i-k)^2+(j-l)^2) for an n X n matrix b filled with the integers 1 to n^2.at n=7A261176
• Half thrice the previous number, rounded down, plus 1, starting with 6.at n=22A302748