25341

Appears in sequences

• Number of directed column-convex polyominoes of height n: a(k+1)=(k+1)*a(k)+(a(1)+...+a(k)).at n=7A007808
• Number of polyhexes of class PF2 with a particular symmetry.at n=15A030525
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 98 ones.at n=29A031866
• Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime.at n=21A104972
• Numbers which converge to 2592 under repeated application of the powertrain map of A133500.at n=31A135384
• Number of 0..n arrays x(0..8) of 9 elements with zero 5th differences.at n=31A200332