15003009

Appears in sequences

• a(n) = 8*a(n-1) - a(n-2); a(0) = 0, a(1) = 1.at n=9A001090
• Denominators of continued fraction convergents to sqrt(15).at n=17A041023
• Denominators of continued fraction convergents to sqrt(60).at n=17A041105
• Numerators of the continued fraction n-1/(n-1/...) [n times].at n=7A097690
• Union of A057080 and A001090.at n=17A177187
• 256*n^8 - 448*n^6 + 240*n^4 - 40*n^2 + 1.at n=4A242853
• a(n) = A041105(4n+1).at n=4A258684
• a(n) = U(2*n, n), where U(n, x) is the Chebyshev polynomial of the second kind.at n=4A349073
• T(n,k) are the values of a variant of the Chebyshev polynomials P(n,x) of order n evaluated at x = k, where T(n,k), n >= 0, k <= n is a triangle read by rows. P(0,x) = 1, P(1,x) = x, P(n,x) = x*P(n-1,x) - P(n-2,x).at n=44A357892
• Table read by antidiagonals: T(t,n) = number of t-metered parking functions of length n.at n=35A372816