45565

Appears in sequences

• Expansion of 1/(1-2*x+x^2+2*x^3).at n=20A077942
• Expansion of 1/(1+2*x+x^2-2*x^3).at n=20A077989
• a(n) = K_3(n) = Sum_{k>=0} A090285(3,k)*2^k*binomial(n,k). a(n) = (4*n^3+30*n^2+56*n+15)/3.at n=30A090294
• a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1) * 4^(k-1).at n=13A099580
• G.f.: (1+38*x+262*x^2+475*x^3+254*x^4+37*x^5+x^6)/(1-x)^7.at n=5A160837
• Minimum value unattainable as the sum of 3 attained values of a*b*c with a,b,c 0..n integers.at n=26A225265