32404

Appears in sequences

• a(n) = Sum_{i=1..floor((n+2)/4)} a(2i-1)*a(n-2i+1), with a(1)=a(2)=1 and a(3)=4.at n=15A024949
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 90.at n=3A031768
• a(n) = 2025*n^2 + n.at n=3A156856
• Number of (n+1)X(2+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock equal.at n=1A237892
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock equal.at n=4A237898
• Values of a sum arising in studying the Fourier transform on the symmetric group S_n.at n=6A323947
• Number of unlabeled digraphs with n nodes containing a global sink (or source), self-loops allowed.at n=4A351052