57641556673
domain: N
Appears in sequences
- a(n) = 8*a(n-1) - a(n-2); a(0) = 0, a(1) = 1.at n=13A001090
- Denominators of continued fraction convergents to sqrt(60).at n=25A041105
- Denominators of continued fraction convergents to sqrt(135).at n=33A041247
- Denominators of continued fraction convergents to sqrt(375).at n=25A041711
- Union of A057080 and A001090.at n=25A177187
- a(n) = A041105(4n+1).at n=6A258684
- a(n) = U(3*n, n), where U(n, x) is the Chebyshev polynomial of the second kind.at n=4A349074