532350

Appears in sequences

• Number of tree-rooted planar maps with 3 faces and n vertices and no isthmuses.at n=24A006470
• a(n) = Sum_{d|6} phi(d)*n^(6/d).at n=9A054605
• a(n) = Sum_{d|n} phi(d)*9^(n/d).at n=6A054616
• Triangle T(n,k) = Sum_{d|k} phi(d)*n^(k/d).at n=41A054619
• Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to n-4.at n=21A180294
• Expansion of e.g.f. S(x,k) satisfying S(x,k) = sin( x*cos(k*x*sqrt(1 - S(x,k)^2)) ), as a triangle read by rows.at n=12A370331
• Expansion of e.g.f. T(x,k) satisfying T(x,k) = (1/k) * sin( k*x*cos(x*sqrt(1 - k^2*T(x,k)^2)) ), as a triangle read by rows.at n=12A370333
• Expansion of e.g.f. S(x,k) satisfying S(x,k) = sinh( x*cosh(k*x*sqrt(1 + S(x,k)^2)) ), as a triangle read by rows.at n=12A370431
• Expansion of e.g.f. T(x,k) satisfying T(x,k) = (1/k) * sinh( k*x*cosh(x*sqrt(1 + k^2*T(x,k)^2)) ), as a triangle read by rows.at n=12A370433