242047
domain: N
Appears in sequences
- a(n) = 8*a(n-1) - a(n-2); a(0) = 0, a(1) = 1.at n=7A001090
- Denominators of continued fraction convergents to sqrt(15).at n=13A041023
- Denominators of continued fraction convergents to sqrt(60).at n=13A041105
- Denominators of continued fraction convergents to sqrt(135).at n=17A041247
- Denominators of continued fraction convergents to sqrt(375).at n=13A041711
- Union of A057080 and A001090.at n=13A177187
- Number triangle associated to Chebyshev polynomials of the second kind.at n=59A228161
- a(n) = 64*n^6 - 80*n^4 + 24*n^2 - 1.at n=4A242851
- a(n) = A041105(4n+1).at n=3A258684
- Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) is Chebyshev polynomial of the second kind U_{n}(x), evaluated at x=k.at n=61A323182
- a(n) = U(n, (n+2)/2) where U(n, x) is a Chebyshev polynomial of the 2nd kind.at n=6A342167