895356

Appears in sequences

• Number of permutations of n letters where exactly 5 change position.at n=20A060836
• Numbers k such that sopfr(k) = ud(k), where sopfr = A001414 and ud = A034444.at n=22A064029
• Numbers k such that A122111(k) [conjugated prime factorization of k] is one of Ore's Harmonic numbers (in A001599).at n=30A336317
• Diagonal of rational function 1/(1 - (x^3 + y^3 + z^3 + x^4*y*z)).at n=15A361739
• Area of the unique primitive Pythagorean triple whose inradius is A000032(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=9A380824
• Triangle read by rows: T(n,k) = binomial(n+1,k+1) * binomial(5*n-4*k+1,k) / (n+1), 0<=k<=n.at n=51A391048