24695

Appears in sequences

• Number of asymmetrical dissections of n-gon.at n=8A000131
• Numbers n such that phi(2n-1) = sigma(n).at n=44A067230
• Numbers n such that sigma(n) and sigma(sigma(n)) are both perfect squares.at n=33A134263
• Triangle read by rows: T(n,k) = the number of Dyck paths of semilength n with k UDDU's.at n=40A135306
• a(n) = 56*n^2 - 1.at n=20A158658
• Diagonal sums of triangle A096815.at n=29A212264
• Number of twice-partitions of type (Q,P,Q) and weight n.at n=31A279790
• Lengths of largest face diagonal in primitive Euler bricks or Pythagorean cuboids: possible values of max(d, e, f) for solutions to a^2 + b^2 = d^2, a^2 + c^2 = e^2, b^2 + c^2 = f^2 in coprime positive integers a, b, c, d, e, f.at n=27A306120
• Number of compositions of n with all adjacent parts (x, y) satisfying x > 2y or y > 2x.at n=28A342332