54808

Appears in sequences

• Theta series of lattice Kappa_7.at n=26A015236
• Least term in period of continued fraction for sqrt(n) is 9.at n=34A031433
• Number of polyiamonds with n cells without holes that do not tile the plane.at n=14A071334
• Number of ordered rooted trees where each subtree from given node has the same number of nodes.at n=27A127525
• The Wiener index of a chain of n squares joined at vertices (i.e., joined like <><><>...<>; here <> is a square!).at n=25A143943
• a(n) = 81*n^2 + 2*n.at n=25A177099
• Smallest k such that k^(2^n) + 1 and (k+2)^(2^n) + 1 are both prime.at n=9A217993
• Number of length-n binary words containing no antisquares except 01 and 10.at n=25A307732