25126

Appears in sequences

• Number of multiples of 3 in 0..2^n-1 with an even sum of base-2 digits.at n=17A036557
• Expansion of (1 - 5*x + 5*x^2)/((1-x)*(1-3*x)*(1-4*x)).at n=8A085282
• a(n) = Sum_{2*i+3*j=n, 0<=i<=n, 0<=j<=n} n!/( (2*i)!*(3*j)! ).at n=17A094715
• The number of homogeneous trisubstituted linear alkanes.at n=33A159938
• G.f.: exp( Sum_{n>=1} A000204(n)^8 * x^n/n ) where A000204 is the Lucas numbers.at n=3A203808
• Numbers of the form x^3 + SumOfCubedDigits(x).at n=29A225051
• Expansion of x^2*(1-x)^3/((1-2*x)*(1-x+x^2)*(1-3*x+3x^2)).at n=17A227430
• Number of (n+1) X (5+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=6A250780
• Number of (7+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=4A250789