46320

Appears in sequences

• Number of words of length 4 in the n(n-1)/2 transpositions of S[ n ] equivalent to the identity.at n=15A029699
• Triangle of coefficients of certain Sheffer-polynomials.at n=16A048870
• Long leg of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=30A089548
• Number of unimodal compositions of n+2 where the maximal part appears exactly twice.at n=30A114921
• Coefficients in the expansion of 1/([r]-[2*r]*x+[3*r]*x^2-...); []=floor, r=3*e/5.at n=18A288232
• Coefficients in the expansion of 1/([r]-[2r]x+[3r]x^2-...); [ ]=floor, r=13/8.at n=18A289261
• L.g.f.: Sum_{n=-oo..+oo} (x - x^(2*n-1))^(2*n-1) / (2*n-1).at n=45A293129
• a(n) = (8*n^3 + 15*n^2 + 13*n)/6.at n=32A332698
• Triangle read by rows: T(n,k) gives n! times the coefficient of x^k in the polynomial that describes the number of permutations on x letters with major index n.at n=37A342645
• Number of edges in regular n-gon after 2 generations of mitosis.at n=21A349968