1698458

Appears in sequences

• Expansion of (1-x)/((1-2x)(1+x-x^2)).at n=22A052964
• Expansion of (1-4*x+2*x^2)/(1-7*x+13*x^2-4*x^3).at n=11A078789
• Inverse binomial transform of Fibonacci oblongs.at n=23A084178
• a(n) = Sum_{k>=0} binomial(n,5*k+1).at n=23A133476
• a(n) = Sum_{k>=0} binomial(n,5*k+2).at n=23A139714
• a(n) = Sum_{k == floor(n/2) (mod 5)} C(n,k).at n=23A173125
• a(n) = Sum_{k=0..n} binomial(5*n+3,5*k+1).at n=4A387812