45445

Appears in sequences

• Trajectory of 1 under map n->39n+1 if n odd, n->n/2 if n even.at n=16A033975
• a(n) is the number of terms in the expansion of (x+y+z)*(x^2+y^2+z^2)*(x^3+y^3+z^3)*...*(x^n+y^n+z^n).at n=23A086796
• Partial sums of orders of finite perfect groups (A060793).at n=25A121513
• Number of ways to place 3 points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle with sides parallel to the grid.at n=9A243212
• Numbers which have only digits 4 and 5 in base 10.at n=39A256290
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=19A293076
• Partial sums of A299254.at n=30A299260