52784

Appears in sequences

• Numbers n such that Mordell's equation y^2 = x^3 - n has exactly 22 integral solutions.at n=2A179174
• 1/4 the number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having distinct edge sums.at n=5A209375
• 1/4 the number of (n+1)X7 0..2 arrays with every 2X2 subblock having distinct edge sums.at n=5A209380
• Number of n X 5 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=9A281202
• Number of n X 3 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=10A301994
• Engel expansion whose sum has the concatenation of its terms as decimal part. Case a(1) = 3.at n=7A305667
• Number of mutual-visibility sets in the n-trapezohedral graph.at n=5A389189