60488

Appears in sequences

• Expansion of f(x^3)/(1-x*f(x^3)), where f(x) is the g.f. of A001764, whose n-th term is binomial(3n,n)/(2n+1).at n=22A126042
• Sequence s_n arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition).at n=13A129873
• Generalized Fibonacci numbers: a(n) = 6*a(n-1) + 2*a(n-2).at n=7A135030
• T(n,k)=number of nXk binary matrices with floor((n*k)/2) 1's and rows in lexicographically nondecreasing order and columns in strictly increasing order.at n=59A180983
• Expansion of g^2/(2 - g), where g = 1+x*g^3 is the g.f. of A001764.at n=7A391125