3354624

Appears in sequences

• Expansion of (1+2*x) / (1-2*x)^4.at n=12A014483
• Sums of the squares of the elements in the subsets of the integers 1 to n.at n=13A087076
• Expansion of 1/sqrt(1 - 4*x + 12*x^2).at n=15A098336
• Expansion of 1/(1-2*x^2-4*x^3). (2,4)-Padovan sequence.at n=23A176739
• a(n) = Sum_{k=0..n} k^5 * (-1)^k * 3^(n-k) * binomial(n,k).at n=12A383152