1032240domain: NAppears in sequencesa(n) = 5th Chebyshev polynomial (second kind) evaluated at 2^n.at n=3A020542Denominators of continued fraction convergents to sqrt(63).at n=11A041111Chebyshev U(n,x) polynomial evaluated at x=8.at n=5A077412a(n) = 32*n^5 - 32*n^3 + 6*n.at n=8A242850